920243210631 has 16 divisors (see below), whose sum is σ = 1245717010944. Its totient is φ = 604138512384.

The previous prime is 920243210563. The next prime is 920243210633. The reversal of 920243210631 is 136012342029.

It is not a de Polignac number, because 920243210631 - 2¹⁸ = 920242948487 is a prime.

It is a super-2 number, since 2×920243210631² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 920243210592 and 920243210601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920243210633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149626 + ... + 1364871.

It is an arithmetic number, because the mean of its divisors is an integer number (77857313184).

Almost surely, 2^920243210631 is an apocalyptic number.

920243210631 is a deficient number, since it is larger than the sum of its proper divisors (325473800313).

920243210631 is a wasteful number, since it uses less digits than its factorization.

920243210631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517590.

The product of its (nonzero) digits is 15552, while the sum is 33.

The spelling of 920243210631 in words is "nine hundred twenty billion, two hundred forty-three million, two hundred ten thousand, six hundred thirty-one".