21000031119999 has 12 divisors (see below), whose sum is σ = 30337821522216. Its totient is φ = 13997970021552.

The previous prime is 21000031119989. The next prime is 21000031120009. The reversal of 21000031119999 is 99991113000012.

It is an interprime number because it is at equal distance from previous prime (21000031119989) and next prime (21000031120009).

It is not a de Polignac number, because 21000031119999 - 2⁷ = 21000031119871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21000031119989) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170828904 + ... + 170951789.

It is an arithmetic number, because the mean of its divisors is an integer number (2528151793518).

Almost surely, 2^{21000031119999} is an apocalyptic number.

21000031119999 is a deficient number, since it is larger than the sum of its proper divisors (9337790402217).

21000031119999 is a wasteful number, since it uses less digits than its factorization.

21000031119999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341787526 (or 341787523 counting only the distinct ones).

The product of its (nonzero) digits is 39366, while the sum is 45.

The spelling of 21000031119999 in words is "twenty-one trillion, thirty-one million, one hundred nineteen thousand, nine hundred ninety-nine".