2113125012 has 36 divisors (see below), whose sum is σ = 5390525140. Its totient is φ = 697911552.

The previous prime is 2113124969. The next prime is 2113125089. The reversal of 2113125012 is 2105213112.

It can be written as a sum of positive squares in 2 ways, for example, as 1521468036 + 591656976 = 39006^2 + 24324^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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, 265333 + ... + 273180.

Almost surely, 2^2113125012 is an apocalyptic number.

It is an amenable number.

2113125012 is an abundant number, since it is smaller than the sum of its proper divisors (3277400128).

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

2113125012 is a wasteful number, since it uses less digits than its factorization.

2113125012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538632 (or 538627 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 2113125012 is about 45968.7395084964. The cubic root of 2113125012 is about 1283.2415018265.

Adding to 2113125012 its reverse (2105213112), we get a palindrome (4218338124).

The spelling of 2113125012 in words is "two billion, one hundred thirteen million, one hundred twenty-five thousand, twelve".