10403123213 has 12 divisors (see below), whose sum is σ = 12107027772. Its totient is φ = 8912957760.

The previous prime is 10403123177. The next prime is 10403123243. The reversal of 10403123213 is 31232130401.

It can be written as a sum of positive squares in 2 ways, for example, as 3731010724 + 6672112489 = 61082^2 + 81683^2 .

It is not a de Polignac number, because 10403123213 - 2⁶ = 10403123149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10403123243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65231 + ... + 158307.

It is an arithmetic number, because the mean of its divisors is an integer number (1008918981).

Almost surely, 2^10403123213 is an apocalyptic number.

It is an amenable number.

10403123213 is a deficient number, since it is larger than the sum of its proper divisors (1703904559).

10403123213 is an equidigital number, since it uses as much as digits as its factorization.

10403123213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95372 (or 95365 counting only the distinct ones).

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

Adding to 10403123213 its reverse (31232130401), we get a palindrome (41635253614).

The spelling of 10403123213 in words is "ten billion, four hundred three million, one hundred twenty-three thousand, two hundred thirteen".