21131441202 has 16 divisors (see below), whose sum is σ = 42337164960. Its totient is φ = 7031433312.

The previous prime is 21131441171. The next prime is 21131441231. The reversal of 21131441202 is 20214413112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3091408 + ... + 3098235.

It is an arithmetic number, because the mean of its divisors is an integer number (2646072810).

Almost surely, 2^21131441202 is an apocalyptic number.

21131441202 is an abundant number, since it is smaller than the sum of its proper divisors (21205723758).

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

21131441202 is a wasteful number, since it uses less digits than its factorization.

21131441202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6190217.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21131441202 its reverse (20214413112), we get a palindrome (41345854314).

The spelling of 21131441202 in words is "twenty-one billion, one hundred thirty-one million, four hundred forty-one thousand, two hundred two".