2013121038 has 32 divisors (see below), whose sum is σ = 4059124992. Its totient is φ = 665582400.

The previous prime is 2013121037. The next prime is 2013121057. The reversal of 2013121038 is 8301213102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013121037) 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, 391170 + ... + 396282.

It is an arithmetic number, because the mean of its divisors is an integer number (126847656).

Almost surely, 2^2013121038 is an apocalyptic number.

2013121038 is an abundant number, since it is smaller than the sum of its proper divisors (2046003954).

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

2013121038 is a wasteful number, since it uses less digits than its factorization.

2013121038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5640.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 2013121038 is about 44867.8173973283. The cubic root of 2013121038 is about 1262.6702918088.

The spelling of 2013121038 in words is "two billion, thirteen million, one hundred twenty-one thousand, thirty-eight".