21231120404414 has 32 divisors (see below), whose sum is σ = 33825455033760. Its totient is φ = 9966087936000.

The previous prime is 21231120404413. The next prime is 21231120404419. The reversal of 21231120404414 is 41440402113212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21231120404413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24046454 + ... + 24913734.

It is an arithmetic number, because the mean of its divisors is an integer number (1057045469805).

Almost surely, 2^{21231120404414} is an apocalyptic number.

21231120404414 is a deficient number, since it is larger than the sum of its proper divisors (12594334629346).

21231120404414 is a wasteful number, since it uses less digits than its factorization.

21231120404414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873116.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 21231120404414 its reverse (41440402113212), we get a palindrome (62671522517626).

The spelling of 21231120404414 in words is "twenty-one trillion, two hundred thirty-one billion, one hundred twenty million, four hundred four thousand, four hundred fourteen".