31401305453 has 16 divisors (see below), whose sum is σ = 37787013120. Its totient is φ = 25491375216.

The previous prime is 31401305449. The next prime is 31401305471. The reversal of 31401305453 is 35450310413.

It is a cyclic number.

It is not a de Polignac number, because 31401305453 - 2² = 31401305449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31401305053) 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, 449276 + ... + 514442.

It is an arithmetic number, because the mean of its divisors is an integer number (2361688320).

Almost surely, 2^31401305453 is an apocalyptic number.

It is an amenable number.

31401305453 is a deficient number, since it is larger than the sum of its proper divisors (6385707667).

31401305453 is a wasteful number, since it uses less digits than its factorization.

31401305453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68816.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 31401305453 its reverse (35450310413), we get a palindrome (66851615866).

The spelling of 31401305453 in words is "thirty-one billion, four hundred one million, three hundred five thousand, four hundred fifty-three".