113211557252 has 6 divisors (see below), whose sum is σ = 198120225198. Its totient is φ = 56605778624.

The previous prime is 113211557219. The next prime is 113211557257. The reversal of 113211557252 is 252755112311.

It can be written as a sum of positive squares in only one way, i.e., 113175725056 + 35832196 = 336416^2 + 5986^2 .

It is not an unprimeable number, because it can be changed into a prime (113211557257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14151444653 + ... + 14151444660.

It is an arithmetic number, because the mean of its divisors is an integer number (33020037533).

Almost surely, 2^113211557252 is an apocalyptic number.

It is an amenable number.

113211557252 is a deficient number, since it is larger than the sum of its proper divisors (84908667946).

113211557252 is a wasteful number, since it uses less digits than its factorization.

113211557252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28302889317 (or 28302889315 counting only the distinct ones).

The product of its digits is 21000, while the sum is 35.

Adding to 113211557252 its reverse (252755112311), we get a palindrome (365966669563).

The spelling of 113211557252 in words is "one hundred thirteen billion, two hundred eleven million, five hundred fifty-seven thousand, two hundred fifty-two".