131211541452 has 48 divisors (see below), whose sum is σ = 310176742400. Its totient is φ = 43163902080.

The previous prime is 131211541441. The next prime is 131211541453. The reversal of 131211541452 is 254145112131.

It is a super-2 number, since 2×131211541452² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131211541453) 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, 2132049 + ... + 2192727.

Almost surely, 2^131211541452 is an apocalyptic number.

131211541452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131211541452 is an abundant number, since it is smaller than the sum of its proper divisors (178965200948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131211541452 is a wasteful number, since it uses less digits than its factorization.

131211541452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63046 (or 63044 counting only the distinct ones).

The product of its digits is 4800, while the sum is 30.

Adding to 131211541452 its reverse (254145112131), we get a palindrome (385356653583).

The spelling of 131211541452 in words is "one hundred thirty-one billion, two hundred eleven million, five hundred forty-one thousand, four hundred fifty-two".