3121231231130 has 8 divisors (see below), whose sum is σ = 5618216216052. Its totient is φ = 1248492492448.

The previous prime is 3121231231099. The next prime is 3121231231141. The reversal of 3121231231130 is 311321321213.

It can be written as a sum of positive squares in 2 ways, for example, as 3060116963761 + 61114267369 = 1749319^2 + 247213^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 3121231231096 and 3121231231105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156061561547 + ... + 156061561566.

Almost surely, 2^{3121231231130} is an apocalyptic number.

3121231231130 is a deficient number, since it is larger than the sum of its proper divisors (2496984984922).

3121231231130 is a wasteful number, since it uses less digits than its factorization.

3121231231130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312123123120.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 3121231231130 its reverse (311321321213), we get a palindrome (3432552552343).

The spelling of 3121231231130 in words is "three trillion, one hundred twenty-one billion, two hundred thirty-one million, two hundred thirty-one thousand, one hundred thirty".