2031013155 has 16 divisors (see below), whose sum is σ = 3250218240. Its totient is φ = 1083007968.

The previous prime is 2031013147. The next prime is 2031013163. The reversal of 2031013155 is 5513101302.

It is an interprime number because it is at equal distance from previous prime (2031013147) and next prime (2031013163).

It is not a de Polignac number, because 2031013155 - 2³ = 2031013147 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112164 + ... + 129006.

It is an arithmetic number, because the mean of its divisors is an integer number (203138640).

Almost surely, 2^2031013155 is an apocalyptic number.

2031013155 is a deficient number, since it is larger than the sum of its proper divisors (1219205085).

2031013155 is a wasteful number, since it uses less digits than its factorization.

2031013155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24890.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 2031013155 is about 45066.7633073421. The cubic root of 2031013155 is about 1266.4000299411.

Adding to 2031013155 its reverse (5513101302), we get a palindrome (7544114457).

The spelling of 2031013155 in words is "two billion, thirty-one million, thirteen thousand, one hundred fifty-five".