1023112252013 has 4 divisors (see below), whose sum is σ = 1025742361020. Its totient is φ = 1020482143008.

The previous prime is 1023112252007. The next prime is 1023112252051. The reversal of 1023112252013 is 3102522113201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 468626500969 + 554485751044 = 684563^2 + 744638^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023112252013 - 2⁶ = 1023112251949 is a prime.

It is a super-2 number, since 2×1023112252013² (a number of 25 digits) contains 22 as substring.

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 1023112252013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023112252003) 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, 1315053920 + ... + 1315054697.

It is an arithmetic number, because the mean of its divisors is an integer number (256435590255).

Almost surely, 2^{1023112252013} is an apocalyptic number.

It is an amenable number.

1023112252013 is a deficient number, since it is larger than the sum of its proper divisors (2630109007).

1023112252013 is an equidigital number, since it uses as much as digits as its factorization.

1023112252013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2630109006.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 1023112252013 its reverse (3102522113201), we get a palindrome (4125634365214).

The spelling of 1023112252013 in words is "one trillion, twenty-three billion, one hundred twelve million, two hundred fifty-two thousand, thirteen".