312103030020130 has 32 divisors (see below), whose sum is σ = 615343093680240. Its totient is φ = 113445969530880.

The previous prime is 312103030019981. The next prime is 312103030020157. The reversal of 312103030020130 is 31020030301213.

It can be written as a sum of positive squares in 8 ways, for example, as 238913995526649 + 73189034493481 = 15456843^2 + 8555059^2 .

It is a junction number, because it is equal to n+sod(n) for n = 312103030020098 and 312103030020107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31653446391 + ... + 31653456250.

Almost surely, 2^{312103030020130} is an apocalyptic number.

312103030020130 is a deficient number, since it is larger than the sum of its proper divisors (303240063660110).

312103030020130 is a wasteful number, since it uses less digits than its factorization.

312103030020130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63306902694.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 312103030020130 its reverse (31020030301213), we get a palindrome (343123060321343).

The spelling of 312103030020130 in words is "three hundred twelve trillion, one hundred three billion, thirty million, twenty thousand, one hundred thirty".