1023122613 has 4 divisors (see below), whose sum is σ = 1364163488. Its totient is φ = 682081740.

The previous prime is 1023122609. The next prime is 1023122641. The reversal of 1023122613 is 3162213201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1023122613 - 2² = 1023122609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1023122613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023122413) 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, 170520433 + ... + 170520438.

It is an arithmetic number, because the mean of its divisors is an integer number (341040872).

Almost surely, 2^1023122613 is an apocalyptic number.

It is an amenable number.

1023122613 is a deficient number, since it is larger than the sum of its proper divisors (341040875).

1023122613 is an equidigital number, since it uses as much as digits as its factorization.

1023122613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341040874.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1023122613 is about 31986.2878902820. The cubic root of 1023122613 is about 1007.6488830872.

Adding to 1023122613 its reverse (3162213201), we get a palindrome (4185335814).

The spelling of 1023122613 in words is "one billion, twenty-three million, one hundred twenty-two thousand, six hundred thirteen".