312121131130 has 16 divisors (see below), whose sum is σ = 564956687520. Its totient is φ = 124150974352.

The previous prime is 312121131121. The next prime is 312121131169. The reversal of 312121131130 is 31131121213.

It is a junction number, because it is equal to n+sod(n) for n = 312121131098 and 312121131107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87182884 + ... + 87186463.

It is an arithmetic number, because the mean of its divisors is an integer number (35309792970).

Almost surely, 2^312121131130 is an apocalyptic number.

312121131130 is a deficient number, since it is larger than the sum of its proper divisors (252835556390).

312121131130 is a wasteful number, since it uses less digits than its factorization.

312121131130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174369533.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 312121131130 its reverse (31131121213), we get a palindrome (343252252343).

The spelling of 312121131130 in words is "three hundred twelve billion, one hundred twenty-one million, one hundred thirty-one thousand, one hundred thirty".