31444023214021 has 8 divisors (see below), whose sum is σ = 34302876117984. Its totient is φ = 28585221199920.

The previous prime is 31444023214007. The next prime is 31444023214027. The reversal of 31444023214021 is 12041232044413.

It is a happy number.

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

It is not a de Polignac number, because 31444023214021 - 2⁵ = 31444023213989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31444023214027) 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, 11424766 + ... + 13907311.

It is an arithmetic number, because the mean of its divisors is an integer number (4287859514748).

Almost surely, 2^{31444023214021} is an apocalyptic number.

It is an amenable number.

31444023214021 is a deficient number, since it is larger than the sum of its proper divisors (2858852903963).

31444023214021 is a wasteful number, since it uses less digits than its factorization.

31444023214021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25444931.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 31444023214021 its reverse (12041232044413), we get a palindrome (43485255258434).

The spelling of 31444023214021 in words is "thirty-one trillion, four hundred forty-four billion, twenty-three million, two hundred fourteen thousand, twenty-one".