210312012312103 has 4 divisors (see below), whose sum is σ = 226489859413048. Its totient is φ = 194134165211160.

The previous prime is 210312012312097. The next prime is 210312012312109. The reversal of 210312012312103 is 301213210213012.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (210312012312097) and next prime (210312012312109).

It is a cyclic number.

It is not a de Polignac number, because 210312012312103 - 2⁵ = 210312012312071 is a prime.

It is a super-2 number, since 2×210312012312103² (a number of 29 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 (210312012312109) 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, 8088923550453 + ... + 8088923550478.

It is an arithmetic number, because the mean of its divisors is an integer number (56622464853262).

Almost surely, 2^{210312012312103} is an apocalyptic number.

210312012312103 is a deficient number, since it is larger than the sum of its proper divisors (16177847100945).

210312012312103 is a wasteful number, since it uses less digits than its factorization.

210312012312103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16177847100944.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 210312012312103 its reverse (301213210213012), we get a palindrome (511525222525115).

The spelling of 210312012312103 in words is "two hundred ten trillion, three hundred twelve billion, twelve million, three hundred twelve thousand, one hundred three".