2031213134121 has 16 divisors (see below), whose sum is σ = 2891757428736. Its totient is φ = 1265143871376.

The previous prime is 2031213133907. The next prime is 2031213134123. The reversal of 2031213134121 is 1214313121302.

It is not a de Polignac number, because 2031213134121 - 2²² = 2031208939817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2031213134091 and 2031213134100.

It is not an unprimeable number, because it can be changed into a prime (2031213134123) 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, 342297865 + ... + 342303798.

It is an arithmetic number, because the mean of its divisors is an integer number (180734839296).

Almost surely, 2^{2031213134121} is an apocalyptic number.

It is an amenable number.

2031213134121 is a deficient number, since it is larger than the sum of its proper divisors (860544294615).

2031213134121 is a wasteful number, since it uses less digits than its factorization.

2031213134121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684601732.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 2031213134121 its reverse (1214313121302), we get a palindrome (3245526255423).

The spelling of 2031213134121 in words is "two trillion, thirty-one billion, two hundred thirteen million, one hundred thirty-four thousand, one hundred twenty-one".