1023431224213 has 4 divisors (see below), whose sum is σ = 1023434617900. Its totient is φ = 1023427830528.

The previous prime is 1023431224129. The next prime is 1023431224219. The reversal of 1023431224213 is 3124221343201.

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 637916897809 + 385514326404 = 798697^2 + 620898^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023431224213 - 2³³ = 1014841289621 is a prime.

It is a super-2 number, since 2×1023431224213² (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 (1023431224219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1195020 + ... + 1864117.

It is an arithmetic number, because the mean of its divisors is an integer number (255858654475).

Almost surely, 2^{1023431224213} is an apocalyptic number.

It is an amenable number.

1023431224213 is a deficient number, since it is larger than the sum of its proper divisors (3393687).

1023431224213 is an equidigital number, since it uses as much as digits as its factorization.

1023431224213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393686.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 1023431224213 its reverse (3124221343201), we get a palindrome (4147652567414).

The spelling of 1023431224213 in words is "one trillion, twenty-three billion, four hundred thirty-one million, two hundred twenty-four thousand, two hundred thirteen".