2031215151 has 16 divisors (see below), whose sum is σ = 3101556224. Its totient is φ = 1158305184.

The previous prime is 2031215143. The next prime is 2031215161. The reversal of 2031215151 is 1515121302.

2031215151 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2031215151 - 2³ = 2031215143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031215101) 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, 89080 + ... + 109533.

It is an arithmetic number, because the mean of its divisors is an integer number (193847264).

Almost surely, 2^2031215151 is an apocalyptic number.

2031215151 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2031215151 is a deficient number, since it is larger than the sum of its proper divisors (1070341073).

2031215151 is a wasteful number, since it uses less digits than its factorization.

2031215151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199110.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 2031215151 is about 45069.0043266989. The cubic root of 2031215151 is about 1266.4420121508.

Adding to 2031215151 its reverse (1515121302), we get a palindrome (3546336453).

The spelling of 2031215151 in words is "two billion, thirty-one million, two hundred fifteen thousand, one hundred fifty-one".