213103031100323 has 128 divisors (see below), whose sum is σ = 271619308800000. Its totient is φ = 167108737775616.

The previous prime is 213103031100319. The next prime is 213103031100347. The reversal of 213103031100323 is 323001130301312.

It is not a de Polignac number, because 213103031100323 - 2² = 213103031100319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213103031100023) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 77407565315 + ... + 77407568067.

It is an arithmetic number, because the mean of its divisors is an integer number (2122025850000).

Almost surely, 2^{213103031100323} is an apocalyptic number.

213103031100323 is a deficient number, since it is larger than the sum of its proper divisors (58516277699677).

213103031100323 is an equidigital number, since it uses as much as digits as its factorization.

213103031100323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691 (or 3651 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 213103031100323 its reverse (323001130301312), we get a palindrome (536104161401635).

The spelling of 213103031100323 in words is "two hundred thirteen trillion, one hundred three billion, thirty-one million, one hundred thousand, three hundred twenty-three".