21412313031 has 8 divisors (see below), whose sum is σ = 29321365744. Its totient is φ = 13889067840.

The previous prime is 21412313029. The next prime is 21412313047. The reversal of 21412313031 is 13031321412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21412313031 - 2¹ = 21412313029 is a prime.

It is a super-2 number, since 2×21412313031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21412312989 and 21412313007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21412313081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96451750 + ... + 96451971.

It is an arithmetic number, because the mean of its divisors is an integer number (3665170718).

Almost surely, 2^21412313031 is an apocalyptic number.

21412313031 is a deficient number, since it is larger than the sum of its proper divisors (7909052713).

21412313031 is a wasteful number, since it uses less digits than its factorization.

21412313031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192903761.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21412313031 its reverse (13031321412), we get a palindrome (34443634443).

The spelling of 21412313031 in words is "twenty-one billion, four hundred twelve million, three hundred thirteen thousand, thirty-one".