131122501452 has 36 divisors (see below), whose sum is σ = 345859353840. Its totient is φ = 41807174112.

The previous prime is 131122501427. The next prime is 131122501493. The reversal of 131122501452 is 254105221131.

It is a happy number.

131122501452 is a `hidden beast` number, since 1 + 3 + 112 + 2 + 501 + 45 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×131122501452² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79179427 + ... + 79181082.

Almost surely, 2^131122501452 is an apocalyptic number.

131122501452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131122501452 is an abundant number, since it is smaller than the sum of its proper divisors (214736852388).

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

131122501452 is a wasteful number, since it uses less digits than its factorization.

131122501452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158360542 (or 158360537 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 131122501452 its reverse (254105221131), we get a palindrome (385227722583).

The spelling of 131122501452 in words is "one hundred thirty-one billion, one hundred twenty-two million, five hundred one thousand, four hundred fifty-two".