31400235253 has 8 divisors (see below), whose sum is σ = 31452744960. Its totient is φ = 31347770160.

The previous prime is 31400235241. The next prime is 31400235323. The reversal of 31400235253 is 35253200413.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31400235253 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 (31401235253) 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, 1581876 + ... + 1601602.

It is an arithmetic number, because the mean of its divisors is an integer number (3931593120).

Almost surely, 2^31400235253 is an apocalyptic number.

It is an amenable number.

31400235253 is a deficient number, since it is larger than the sum of its proper divisors (52509707).

31400235253 is a wasteful number, since it uses less digits than its factorization.

31400235253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22307.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 31400235253 its reverse (35253200413), we get a palindrome (66653435666).

The spelling of 31400235253 in words is "thirty-one billion, four hundred million, two hundred thirty-five thousand, two hundred fifty-three".