1231297351863 has 8 divisors (see below), whose sum is σ = 1642132895088. Its totient is φ = 820663354944.

The previous prime is 1231297351831. The next prime is 1231297351873. The reversal of 1231297351863 is 3681537921321.

It is a happy number.

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

It is not a de Polignac number, because 1231297351863 - 2⁵ = 1231297351831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231297351873) 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, 50372320 + ... + 50396757.

It is an arithmetic number, because the mean of its divisors is an integer number (205266611886).

Almost surely, 2^{1231297351863} is an apocalyptic number.

1231297351863 is a deficient number, since it is larger than the sum of its proper divisors (410835543225).

1231297351863 is a wasteful number, since it uses less digits than its factorization.

1231297351863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100773153.

The product of its digits is 1632960, while the sum is 51.

The spelling of 1231297351863 in words is "one trillion, two hundred thirty-one billion, two hundred ninety-seven million, three hundred fifty-one thousand, eight hundred sixty-three".