312131111200042 has 16 divisors (see below), whose sum is σ = 483309729487872. Its totient is φ = 151028075212560.

The previous prime is 312131111200019. The next prime is 312131111200057. The reversal of 312131111200042 is 240002111131213.

It is a junction number, because it is equal to n+sod(n) for n = 312131111199986 and 312131111200022.

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, 48754833 + ... + 54784084.

It is an arithmetic number, because the mean of its divisors is an integer number (30206858092992).

Almost surely, 2^{312131111200042} is an apocalyptic number.

312131111200042 is a deficient number, since it is larger than the sum of its proper divisors (171178618287830).

312131111200042 is a wasteful number, since it uses less digits than its factorization.

312131111200042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103587573.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 312131111200042 its reverse (240002111131213), we get a palindrome (552133222331255).

The spelling of 312131111200042 in words is "three hundred twelve trillion, one hundred thirty-one billion, one hundred eleven million, two hundred thousand, forty-two".