1020970631 has 8 divisors (see below), whose sum is σ = 1025423520. Its totient is φ = 1016525952.

The previous prime is 1020970609. The next prime is 1020970651. The reversal of 1020970631 is 1360790201.

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

It is a cyclic number.

It is not a de Polignac number, because 1020970631 - 2¹⁴ = 1020954247 is a prime.

It is a super-2 number, since 2×1020970631² = 2084762058729076322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020970594 and 1020970603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020970651) 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 7 ways as a sum of consecutive naturals, for example, 411611 + ... + 414083.

It is an arithmetic number, because the mean of its divisors is an integer number (128177940).

Almost surely, 2^1020970631 is an apocalyptic number.

1020970631 is a deficient number, since it is larger than the sum of its proper divisors (4452889).

1020970631 is a wasteful number, since it uses less digits than its factorization.

1020970631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4105.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 1020970631 is about 31952.6310497273. The cubic root of 1020970631 is about 1006.9419087262.

The spelling of 1020970631 in words is "one billion, twenty million, nine hundred seventy thousand, six hundred thirty-one".