312021321103134 has 16 divisors (see below), whose sum is σ = 693380713562640. Its totient is φ = 104007107034360.

The previous prime is 312021321103127. The next prime is 312021321103139. The reversal of 312021321103134 is 431301123120213.

312021321103134 is a `hidden beast` number, since 3 + 1 + 2 + 0 + 21 + 321 + 1 + 0 + 313 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 312021321103098 and 312021321103107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312021321103139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2889086306457 + ... + 2889086306564.

It is an arithmetic number, because the mean of its divisors is an integer number (43336294597665).

Almost surely, 2^{312021321103134} is an apocalyptic number.

312021321103134 is an abundant number, since it is smaller than the sum of its proper divisors (381359392459506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312021321103134 is a wasteful number, since it uses less digits than its factorization.

312021321103134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5778172613032 (or 5778172613026 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 312021321103134 its reverse (431301123120213), we get a palindrome (743322444223347).

The spelling of 312021321103134 in words is "three hundred twelve trillion, twenty-one billion, three hundred twenty-one million, one hundred three thousand, one hundred thirty-four".