3121132215130 has 16 divisors (see below), whose sum is σ = 5618062513224. Its totient is φ = 1248447435840.

The previous prime is 3121132215029. The next prime is 3121132215163. The reversal of 3121132215130 is 315122311213.

It can be written as a sum of positive squares in 4 ways, for example, as 3011304266721 + 109827948409 = 1735311^2 + 331403^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3121132215095 and 3121132215104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2378140 + ... + 3449320.

Almost surely, 2^{3121132215130} is an apocalyptic number.

3121132215130 is a deficient number, since it is larger than the sum of its proper divisors (2496930298094).

3121132215130 is a wasteful number, since it uses less digits than its factorization.

3121132215130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1362561.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 3121132215130 its reverse (315122311213), we get a palindrome (3436254526343).

The spelling of 3121132215130 in words is "three trillion, one hundred twenty-one billion, one hundred thirty-two million, two hundred fifteen thousand, one hundred thirty".