21411314031 has 32 divisors (see below), whose sum is σ = 31245907968. Its totient is φ = 13001852160.

The previous prime is 21411313999. The next prime is 21411314039. The reversal of 21411314031 is 13041311412.

It is not a de Polignac number, because 21411314031 - 2⁵ = 21411313999 is a prime.

It is a super-2 number, since 2×21411314031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21411313989 and 21411314007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21411314039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30771 + ... + 209211.

It is an arithmetic number, because the mean of its divisors is an integer number (976434624).

Almost surely, 2^21411314031 is an apocalyptic number.

21411314031 is a deficient number, since it is larger than the sum of its proper divisors (9834593937).

21411314031 is a wasteful number, since it uses less digits than its factorization.

21411314031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178551.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21411314031 its reverse (13041311412), we get a palindrome (34452625443).

The spelling of 21411314031 in words is "twenty-one billion, four hundred eleven million, three hundred fourteen thousand, thirty-one".