31444010000421 has 16 divisors (see below), whose sum is σ = 45208332738240. Its totient is φ = 19374999742080.

The previous prime is 31444010000357. The next prime is 31444010000441. The reversal of 31444010000421 is 12400001044413.

It is not a de Polignac number, because 31444010000421 - 2⁶ = 31444010000357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31444010000391 and 31444010000400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31444010000441) 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, 6727428130 + ... + 6727432803.

It is an arithmetic number, because the mean of its divisors is an integer number (2825520796140).

Almost surely, 2^{31444010000421} is an apocalyptic number.

It is an amenable number.

31444010000421 is a deficient number, since it is larger than the sum of its proper divisors (13764322737819).

31444010000421 is a wasteful number, since it uses less digits than its factorization.

31444010000421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13454860996.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 31444010000421 its reverse (12400001044413), we get a palindrome (43844011044834).

The spelling of 31444010000421 in words is "thirty-one trillion, four hundred forty-four billion, ten million, four hundred twenty-one", and thus it is an aban number.