127231653631 has 4 divisors (see below), whose sum is σ = 127232947000. Its totient is φ = 127230360264.

The previous prime is 127231653613. The next prime is 127231653671. The reversal of 127231653631 is 136356132721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136356132721 = 421 ⋅323886301.

It is a cyclic number.

It is not a de Polignac number, because 127231653631 - 2⁷ = 127231653503 is a prime.

It is a super-2 number, since 2×127231653631² (a number of 23 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 (127231653671) 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, 485781 + ... + 700318.

It is an arithmetic number, because the mean of its divisors is an integer number (31808236750).

Almost surely, 2^127231653631 is an apocalyptic number.

127231653631 is a deficient number, since it is larger than the sum of its proper divisors (1293369).

127231653631 is a wasteful number, since it uses less digits than its factorization.

127231653631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293368.

The product of its digits is 136080, while the sum is 40.

The spelling of 127231653631 in words is "one hundred twenty-seven billion, two hundred thirty-one million, six hundred fifty-three thousand, six hundred thirty-one".