2121300031239 has 24 divisors (see below), whose sum is σ = 3097821107472. Its totient is φ = 1398656540160.

The previous prime is 2121300031237. The next prime is 2121300031241. The reversal of 2121300031239 is 9321300031212.

2121300031239 is a `hidden beast` number, since 2 + 12 + 1 + 300 + 0 + 312 + 39 = 666.

It is an interprime number because it is at equal distance from previous prime (2121300031237) and next prime (2121300031241).

It is not a de Polignac number, because 2121300031239 - 2¹ = 2121300031237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121300031237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 432304 + ... + 2104634.

It is an arithmetic number, because the mean of its divisors is an integer number (129075879478).

Almost surely, 2^{2121300031239} is an apocalyptic number.

2121300031239 is a deficient number, since it is larger than the sum of its proper divisors (976521076233).

2121300031239 is a wasteful number, since it uses less digits than its factorization.

2121300031239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673887 (or 1673884 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

Subtracting from 2121300031239 its sum of digits (27), we obtain a palindrome (2121300031212).

The spelling of 2121300031239 in words is "two trillion, one hundred twenty-one billion, three hundred million, thirty-one thousand, two hundred thirty-nine".