2130121303031 has 32 divisors (see below), whose sum is σ = 2256338187648. Its totient is φ = 2006936870400.

The previous prime is 2130121303007. The next prime is 2130121303067. The reversal of 2130121303031 is 1303031210312.

It is not a de Polignac number, because 2130121303031 - 2²² = 2130117108727 is a prime.

It is a super-2 number, since 2×2130121303031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2130121302994 and 2130121303012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130121303231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 487105361 + ... + 487109733.

It is an arithmetic number, because the mean of its divisors is an integer number (70510568364).

Almost surely, 2^{2130121303031} is an apocalyptic number.

2130121303031 is a deficient number, since it is larger than the sum of its proper divisors (126216884617).

2130121303031 is a wasteful number, since it uses less digits than its factorization.

2130121303031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5531.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 2130121303031 its reverse (1303031210312), we get a palindrome (3433152513343).

The spelling of 2130121303031 in words is "two trillion, one hundred thirty billion, one hundred twenty-one million, three hundred three thousand, thirty-one".