113121002 has 4 divisors (see below), whose sum is σ = 169681506. Its totient is φ = 56560500.

The previous prime is 113120981. The next prime is 113121031. The reversal of 113121002 is 200121311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200121311 = 13 ⋅15393947.

It can be written as a sum of positive squares in only one way, i.e., 102434641 + 10686361 = 10121^2 + 3269^2 .

It is a super-2 number, since 2×113121002² = 25592722186968008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28280249 + ... + 28280252.

Almost surely, 2^113121002 is an apocalyptic number.

113121002 is a deficient number, since it is larger than the sum of its proper divisors (56560504).

113121002 is an equidigital number, since it uses as much as digits as its factorization.

113121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56560503.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 113121002 is about 10635.8357452529. The cubic root of 113121002 is about 483.6313160002.

Adding to 113121002 its reverse (200121311), we get a palindrome (313242313).

The spelling of 113121002 in words is "one hundred thirteen million, one hundred twenty-one thousand, two".