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131203110120233 = 310634223774591
BaseRepresentation
bin11101110101010000011010…
…110001011010101100101001
3122012112220011022221212122112
4131311100122301122230221
5114144112432142321413
61143013513211132105
736431053244042444
oct3565203261325451
9565486138855575
10131203110120233
1138894a21228718
1212870060144035
1358295282cc408
14245839b79665b
151027d6232b2a8
hex77541ac5ab29

131203110120233 has 4 divisors (see below), whose sum is σ = 131207333925888. Its totient is φ = 131198886314580.

The previous prime is 131203110120193. The next prime is 131203110120293. The reversal of 131203110120233 is 332021011302131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131203110120233 - 210 = 131203110119209 is a prime.

It is a super-2 number, since 2×1312031101202332 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131203110120199 and 131203110120208.

It is not an unprimeable number, because it can be changed into a prime (131203110120293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2111856233 + ... + 2111918358.

It is an arithmetic number, because the mean of its divisors is an integer number (32801833481472).

Almost surely, 2131203110120233 is an apocalyptic number.

It is an amenable number.

131203110120233 is a deficient number, since it is larger than the sum of its proper divisors (4223805655).

131203110120233 is an equidigital number, since it uses as much as digits as its factorization.

131203110120233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4223805654.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 131203110120233 its reverse (332021011302131), we get a palindrome (463224121422364).

The spelling of 131203110120233 in words is "one hundred thirty-one trillion, two hundred three billion, one hundred ten million, one hundred twenty thousand, two hundred thirty-three".

Divisors: 1 31063 4223774591 131203110120233