31234300402221 has 96 divisors (see below), whose sum is σ = 55265267785728. Its totient is φ = 17250729174720.

The previous prime is 31234300402187. The next prime is 31234300402229. The reversal of 31234300402221 is 12220400343213.

31234300402221 is a `hidden beast` number, since 3 + 1 + 2 + 3 + 4 + 30 + 0 + 402 + 221 = 666.

It is not a de Polignac number, because 31234300402221 - 2⁶ = 31234300402157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31234300402229) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 41655006 + ... + 42398208.

It is an arithmetic number, because the mean of its divisors is an integer number (575679872768).

Almost surely, 2^{31234300402221} is an apocalyptic number.

31234300402221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

31234300402221 is a deficient number, since it is larger than the sum of its proper divisors (24030967383507).

31234300402221 is an equidigital number, since it uses as much as digits as its factorization.

31234300402221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744053 (or 744041 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 31234300402221 its reverse (12220400343213), we get a palindrome (43454700745434).

The spelling of 31234300402221 in words is "thirty-one trillion, two hundred thirty-four billion, three hundred million, four hundred two thousand, two hundred twenty-one".