213020103423 has 32 divisors (see below), whose sum is σ = 308071710720. Its totient is φ = 130433103360.

The previous prime is 213020103407. The next prime is 213020103427. The reversal of 213020103423 is 324301020312.

It is not a de Polignac number, because 213020103423 - 2⁴ = 213020103407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213020103423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213020103427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125518 + ... + 664676.

It is an arithmetic number, because the mean of its divisors is an integer number (9627240960).

Almost surely, 2^213020103423 is an apocalyptic number.

213020103423 is a deficient number, since it is larger than the sum of its proper divisors (95051607297).

213020103423 is a wasteful number, since it uses less digits than its factorization.

213020103423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539367.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 213020103423 its reverse (324301020312), we get a palindrome (537321123735).

The spelling of 213020103423 in words is "two hundred thirteen billion, twenty million, one hundred three thousand, four hundred twenty-three".