1020631703 has 64 divisors (see below), whose sum is σ = 1387330560. Its totient is φ = 728082432.

The previous prime is 1020631699. The next prime is 1020631709. The reversal of 1020631703 is 3071360201.

It is a happy number.

It is not a de Polignac number, because 1020631703 - 2² = 1020631699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020631709) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4456793 + ... + 4457021.

It is an arithmetic number, because the mean of its divisors is an integer number (21677040).

Almost surely, 2^1020631703 is an apocalyptic number.

1020631703 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1020631703 is a deficient number, since it is larger than the sum of its proper divisors (366698857).

1020631703 is a wasteful number, since it uses less digits than its factorization.

1020631703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 1020631703 is about 31947.3270086873. The cubic root of 1020631703 is about 1006.8304727493.

Adding to 1020631703 its reverse (3071360201), we get a palindrome (4091991904).

The spelling of 1020631703 in words is "one billion, twenty million, six hundred thirty-one thousand, seven hundred three".