1321125023124 has 96 divisors (see below), whose sum is σ = 3432708720000. Its totient is φ = 439402491648.

The previous prime is 1321125023123. The next prime is 1321125023143. The reversal of 1321125023124 is 4213205211231.

It is a happy number.

1321125023124 is a `hidden beast` number, since 1 + 3 + 21 + 12 + 502 + 3 + 124 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321125023123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209732527 + ... + 209738825.

It is an arithmetic number, because the mean of its divisors is an integer number (35757382500).

Almost surely, 2^{1321125023124} is an apocalyptic number.

It is an amenable number.

1321125023124 is an abundant number, since it is smaller than the sum of its proper divisors (2111583696876).

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

1321125023124 is a wasteful number, since it uses less digits than its factorization.

1321125023124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10294 (or 10286 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The spelling of 1321125023124 in words is "one trillion, three hundred twenty-one billion, one hundred twenty-five million, twenty-three thousand, one hundred twenty-four".