1023340651631 has 8 divisors (see below), whose sum is σ = 1025610630000. Its totient is φ = 1021071551040.

The previous prime is 1023340651601. The next prime is 1023340651667. The reversal of 1023340651631 is 1361560433201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1023340651631 is a prime.

It is a super-2 number, since 2×1023340651631² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1023340651591 and 1023340651600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023340651601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2142941 + ... + 2576601.

It is an arithmetic number, because the mean of its divisors is an integer number (128201328750).

Almost surely, 2^{1023340651631} is an apocalyptic number.

1023340651631 is a deficient number, since it is larger than the sum of its proper divisors (2269978369).

1023340651631 is an equidigital number, since it uses as much as digits as its factorization.

1023340651631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438889.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 1023340651631 in words is "one trillion, twenty-three billion, three hundred forty million, six hundred fifty-one thousand, six hundred thirty-one".