1023672149231 has 4 divisors (see below), whose sum is σ = 1024072492872. Its totient is φ = 1023271805592.

The previous prime is 1023672149221. The next prime is 1023672149233. The reversal of 1023672149231 is 1329412763201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1023672149231 - 2²² = 1023667954927 is a prime.

It is a super-2 number, since 2×1023672149231² (a number of 25 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 (1023672149233) 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, 200167985 + ... + 200173098.

It is an arithmetic number, because the mean of its divisors is an integer number (256018123218).

Almost surely, 2^{1023672149231} is an apocalyptic number.

1023672149231 is a deficient number, since it is larger than the sum of its proper divisors (400343641).

1023672149231 is an equidigital number, since it uses as much as digits as its factorization.

1023672149231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400343640.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 1023672149231 in words is "one trillion, twenty-three billion, six hundred seventy-two million, one hundred forty-nine thousand, two hundred thirty-one".