1313402023 has 4 divisors (see below), whose sum is σ = 1313732200. Its totient is φ = 1313071848.

The previous prime is 1313402021. The next prime is 1313402029. The reversal of 1313402023 is 3202043131.

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

It is a cyclic number.

It is not a de Polignac number, because 1313402023 - 2¹ = 1313402021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313402021) 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, 159048 + ... + 167101.

It is an arithmetic number, because the mean of its divisors is an integer number (328433050).

Almost surely, 2^1313402023 is an apocalyptic number.

1313402023 is a deficient number, since it is larger than the sum of its proper divisors (330177).

1313402023 is an equidigital number, since it uses as much as digits as its factorization.

1313402023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330176.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1313402023 is about 36240.8888274005. Note that the first 4 decimals coincide. The cubic root of 1313402023 is about 1095.1305482960.

Adding to 1313402023 its reverse (3202043131), we get a palindrome (4515445154).

The spelling of 1313402023 in words is "one billion, three hundred thirteen million, four hundred two thousand, twenty-three".