21131431212414 has 16 divisors (see below), whose sum is σ = 42515933459328. Its totient is φ = 7001631898392.

The previous prime is 21131431212371. The next prime is 21131431212467. The reversal of 21131431212414 is 41421213413112.

It is a super-2 number, since 2×21131431212414² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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, 10544625352 + ... + 10544627355.

It is an arithmetic number, because the mean of its divisors is an integer number (2657245841208).

Almost surely, 2^{21131431212414} is an apocalyptic number.

21131431212414 is an abundant number, since it is smaller than the sum of its proper divisors (21384502246914).

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

21131431212414 is a wasteful number, since it uses less digits than its factorization.

21131431212414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21089252879.

The product of its digits is 4608, while the sum is 30.

Adding to 21131431212414 its reverse (41421213413112), we get a palindrome (62552644625526).

The spelling of 21131431212414 in words is "twenty-one trillion, one hundred thirty-one billion, four hundred thirty-one million, two hundred twelve thousand, four hundred fourteen".