1011315206631 has 4 divisors (see below), whose sum is σ = 1348420275512. Its totient is φ = 674210137752.

The previous prime is 1011315206623. The next prime is 1011315206633. The reversal of 1011315206631 is 1366025131101.

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

It is not a de Polignac number, because 1011315206631 - 2³ = 1011315206623 is a prime.

It is a super-2 number, since 2×1011315206631² (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 (1011315206633) 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, 168552534436 + ... + 168552534441.

It is an arithmetic number, because the mean of its divisors is an integer number (337105068878).

Almost surely, 2^{1011315206631} is an apocalyptic number.

1011315206631 is a deficient number, since it is larger than the sum of its proper divisors (337105068881).

1011315206631 is an equidigital number, since it uses as much as digits as its factorization.

1011315206631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337105068880.

The product of its (nonzero) digits is 3240, while the sum is 30.

The spelling of 1011315206631 in words is "one trillion, eleven billion, three hundred fifteen million, two hundred six thousand, six hundred thirty-one".