21031143422002 has 32 divisors (see below), whose sum is σ = 37370757715200. Its totient is φ = 8685240744768.

The previous prime is 21031143421987. The next prime is 21031143422027. The reversal of 21031143422002 is 20022434113012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51287677 + ... + 51696112.

It is an arithmetic number, because the mean of its divisors is an integer number (1167836178600).

Almost surely, 2^{21031143422002} is an apocalyptic number.

21031143422002 is a deficient number, since it is larger than the sum of its proper divisors (16339614293198).

21031143422002 is a wasteful number, since it uses less digits than its factorization.

21031143422002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102984330.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 21031143422002 its reverse (20022434113012), we get a palindrome (41053577535014).

The spelling of 21031143422002 in words is "twenty-one trillion, thirty-one billion, one hundred forty-three million, four hundred twenty-two thousand, two".