31151320252423 has 8 divisors (see below), whose sum is σ = 35727309246848. Its totient is φ = 26606781354744.

The previous prime is 31151320252397. The next prime is 31151320252427. The reversal of 31151320252423 is 32425202315113.

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

It is a cyclic number.

It is not a de Polignac number, because 31151320252423 - 2¹⁷ = 31151320121351 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 (31151320252427) 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, 7862522061 + ... + 7862526022.

It is an arithmetic number, because the mean of its divisors is an integer number (4465913655856).

Almost surely, 2^{31151320252423} is an apocalyptic number.

31151320252423 is a deficient number, since it is larger than the sum of its proper divisors (4575988994425).

31151320252423 is a wasteful number, since it uses less digits than its factorization.

31151320252423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15725048373.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 31151320252423 its reverse (32425202315113), we get a palindrome (63576522567536).

The spelling of 31151320252423 in words is "thirty-one trillion, one hundred fifty-one billion, three hundred twenty million, two hundred fifty-two thousand, four hundred twenty-three".