113121402 has 32 divisors (see below), whose sum is σ = 246369600. Its totient is φ = 34489728.

The previous prime is 113121401. The next prime is 113121409. The reversal of 113121402 is 204121311.

It is not an unprimeable number, because it can be changed into a prime (113121401) 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, 13803 + ... + 20414.

It is an arithmetic number, because the mean of its divisors is an integer number (7699050).

Almost surely, 2^113121402 is an apocalyptic number.

113121402 is an abundant number, since it is smaller than the sum of its proper divisors (133248198).

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

113121402 is a wasteful number, since it uses less digits than its factorization.

113121402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34270.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 113121402 is about 10635.8545495884. The cubic root of 113121402 is about 483.6318860455.

Adding to 113121402 its reverse (204121311), we get a palindrome (317242713).

Subtracting 113121402 from its reverse (204121311), we obtain a palindrome (90999909).

The spelling of 113121402 in words is "one hundred thirteen million, one hundred twenty-one thousand, four hundred two".