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131452402123 = 783230997987
BaseRepresentation
bin111101001101100101…
…1000111100111001011
3110120022010212220210001
41322123023013213023
54123203303331443
6140215521103431
712332340660610
oct1723313074713
9416263786701
10131452402123
11508264aa369
1221587187b77
13c51ba6cb83
14651033c507
153645609d4d
hex1e9b2c79cb

131452402123 has 16 divisors (see below), whose sum is σ = 152108732160. Its totient is φ = 111266630496.

The previous prime is 131452402087. The next prime is 131452402181. The reversal of 131452402123 is 321204254131.

It is a de Polignac number, because none of the positive numbers 2k-131452402123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131452402091 and 131452402100.

It is not an unprimeable number, because it can be changed into a prime (131452442123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1292536 + ... + 1390522.

It is an arithmetic number, because the mean of its divisors is an integer number (9506795760).

Almost surely, 2131452402123 is an apocalyptic number.

131452402123 is a deficient number, since it is larger than the sum of its proper divisors (20656330037).

131452402123 is an equidigital number, since it uses as much as digits as its factorization.

131452402123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100386.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 131452402123 its reverse (321204254131), we get a palindrome (452656656254).

The spelling of 131452402123 in words is "one hundred thirty-one billion, four hundred fifty-two million, four hundred two thousand, one hundred twenty-three".

Divisors: 1 7 83 581 2309 16163 97987 191647 685909 1341529 8132921 56930447 226251983 1583763881 18778914589 131452402123