113145455131 has 8 divisors (see below), whose sum is σ = 114387233328. Its totient is φ = 111906060000.

The previous prime is 113145455113. The next prime is 113145455201. The reversal of 113145455131 is 131554541311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113145455131 - 2³³ = 104555520539 is a prime.

It is a super-2 number, since 2×113145455131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113145435131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500205 + ... + 690286.

It is an arithmetic number, because the mean of its divisors is an integer number (14298404166).

Almost surely, 2^113145455131 is an apocalyptic number.

113145455131 is a deficient number, since it is larger than the sum of its proper divisors (1241778197).

113145455131 is a wasteful number, since it uses less digits than its factorization.

113145455131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191533.

The product of its digits is 18000, while the sum is 34.

Adding to 113145455131 its reverse (131554541311), we get a palindrome (244699996442).

The spelling of 113145455131 in words is "one hundred thirteen billion, one hundred forty-five million, four hundred fifty-five thousand, one hundred thirty-one".