1310020023 has 16 divisors (see below), whose sum is σ = 1899322880. Its totient is φ = 798336864.

The previous prime is 1310020021. The next prime is 1310020067. The reversal of 1310020023 is 3200200131.

It is a happy number.

It is not a de Polignac number, because 1310020023 - 2¹ = 1310020021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1310019990 and 1310020008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310020021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159043 + ... + 167076.

It is an arithmetic number, because the mean of its divisors is an integer number (118707680).

Almost surely, 2^1310020023 is an apocalyptic number.

1310020023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1310020023 is a deficient number, since it is larger than the sum of its proper divisors (589302857).

1310020023 is a wasteful number, since it uses less digits than its factorization.

1310020023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326238.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1310020023 is about 36194.1987478657. The cubic root of 1310020023 is about 1094.1897561061.

Adding to 1310020023 its reverse (3200200131), we get a palindrome (4510220154).

The spelling of 1310020023 in words is "one billion, three hundred ten million, twenty thousand, twenty-three".