971542302331253 has 4 divisors (see below), whose sum is σ = 971542800096288. Its totient is φ = 971541804566220.

The previous prime is 971542302331213. The next prime is 971542302331297. The reversal of 971542302331253 is 352133203245179.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 971542302331253 - 2¹⁴ = 971542302314869 is a prime.

It is a super-2 number, since 2×971542302331253² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971542302331213) 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, 245943233 + ... + 249862278.

It is an arithmetic number, because the mean of its divisors is an integer number (242885700024072).

Almost surely, 2^{971542302331253} is an apocalyptic number.

It is an amenable number.

971542302331253 is a deficient number, since it is larger than the sum of its proper divisors (497765035).

971542302331253 is a wasteful number, since it uses less digits than its factorization.

971542302331253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497765034.

The product of its (nonzero) digits is 4082400, while the sum is 50.

The spelling of 971542302331253 in words is "nine hundred seventy-one trillion, five hundred forty-two billion, three hundred two million, three hundred thirty-one thousand, two hundred fifty-three".