1023202312013 has 6 divisors (see below), whose sum is σ = 1190255750766. Its totient is φ = 877030553112.

The previous prime is 1023202312009. The next prime is 1023202312019. The reversal of 1023202312013 is 3102132023201.

It can be written as a sum of positive squares in only one way, i.e., 1013722758244 + 9479553769 = 1006838^2 + 97363^2 .

It is not a de Polignac number, because 1023202312013 - 2² = 1023202312009 is a prime.

It is a super-2 number, since 2×1023202312013² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023202312019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10440839870 + ... + 10440839967.

It is an arithmetic number, because the mean of its divisors is an integer number (198375958461).

Almost surely, 2^{1023202312013} is an apocalyptic number.

It is an amenable number.

1023202312013 is a deficient number, since it is larger than the sum of its proper divisors (167053438753).

1023202312013 is an equidigital number, since it uses as much as digits as its factorization.

1023202312013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20881679851 (or 20881679844 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1023202312013 its reverse (3102132023201), we get a palindrome (4125334335214).

The spelling of 1023202312013 in words is "one trillion, twenty-three billion, two hundred two million, three hundred twelve thousand, thirteen".