312203121130 has 16 divisors (see below), whose sum is σ = 563738385960. Its totient is φ = 124487300032.

The previous prime is 312203121107. The next prime is 312203121151. The reversal of 312203121130 is 31121302213.

It can be written as a sum of positive squares in 4 ways, for example, as 172559652409 + 139643468721 = 415403^2 + 373689^2 .

It is a junction number, because it is equal to n+sod(n) for n = 312203121098 and 312203121107.

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, 49240225 + ... + 49246564.

Almost surely, 2^312203121130 is an apocalyptic number.

312203121130 is a deficient number, since it is larger than the sum of its proper divisors (251535264830).

312203121130 is a wasteful number, since it uses less digits than its factorization.

312203121130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98487113.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 312203121130 its reverse (31121302213), we get a palindrome (343324423343).

The spelling of 312203121130 in words is "three hundred twelve billion, two hundred three million, one hundred twenty-one thousand, one hundred thirty".