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2120232131 = 2359389867
BaseRepresentation
bin111111001100000…
…0010110011000011
312110202120221200222
41332120002303003
513320234412011
6550215533255
7103353450533
oct17630026303
95422527628
102120232131
119988a7866
124b208a22b
1327a352b34
141618354c3
15c6211ddb
hex7e602cc3

2120232131 has 4 divisors (see below), whose sum is σ = 2120345592. Its totient is φ = 2120118672.

The previous prime is 2120232109. The next prime is 2120232133. The reversal of 2120232131 is 1312320212.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2120232131 - 26 = 2120232067 is a prime.

It is a super-2 number, since 2×21202321312 = 8990768578649602322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120232133) 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, 21341 + ... + 68526.

It is an arithmetic number, because the mean of its divisors is an integer number (530086398).

Almost surely, 22120232131 is an apocalyptic number.

2120232131 is a deficient number, since it is larger than the sum of its proper divisors (113461).

2120232131 is an equidigital number, since it uses as much as digits as its factorization.

2120232131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113460.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2120232131 is about 46045.9784454625. The cubic root of 2120232131 is about 1284.6785432389.

Adding to 2120232131 its reverse (1312320212), we get a palindrome (3432552343).

The spelling of 2120232131 in words is "two billion, one hundred twenty million, two hundred thirty-two thousand, one hundred thirty-one".

Divisors: 1 23593 89867 2120232131