31401002144023 has 4 divisors (see below), whose sum is σ = 32413937697088. Its totient is φ = 30388066590960.

The previous prime is 31401002143913. The next prime is 31401002144047. The reversal of 31401002144023 is 32044120010413.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31401002144023 - 2⁴¹ = 29201978888471 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 (31401002144063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506467776486 + ... + 506467776547.

It is an arithmetic number, because the mean of its divisors is an integer number (8103484424272).

Almost surely, 2^{31401002144023} is an apocalyptic number.

31401002144023 is a deficient number, since it is larger than the sum of its proper divisors (1012935553065).

31401002144023 is a wasteful number, since it uses less digits than its factorization.

31401002144023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012935553064.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 31401002144023 its reverse (32044120010413), we get a palindrome (63445122154436).

The spelling of 31401002144023 in words is "thirty-one trillion, four hundred one billion, two million, one hundred forty-four thousand, twenty-three".