10203431023 has 4 divisors (see below), whose sum is σ = 10251788728. Its totient is φ = 10155073320.

The previous prime is 10203431003. The next prime is 10203431057. The reversal of 10203431023 is 32013430201.

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 10203431023 - 2⁹ = 10203430511 is a prime.

It is a super-2 number, since 2×10203431023² (a number of 21 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 (10203431003) 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, 24178536 + ... + 24178957.

It is an arithmetic number, because the mean of its divisors is an integer number (2562947182).

Almost surely, 2^10203431023 is an apocalyptic number.

10203431023 is a deficient number, since it is larger than the sum of its proper divisors (48357705).

10203431023 is an equidigital number, since it uses as much as digits as its factorization.

10203431023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48357704.

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

Adding to 10203431023 its reverse (32013430201), we get a palindrome (42216861224).

The spelling of 10203431023 in words is "ten billion, two hundred three million, four hundred thirty-one thousand, twenty-three".