103212311231 has 4 divisors (see below), whose sum is σ = 103244699832. Its totient is φ = 103179922632.

The previous prime is 103212311149. The next prime is 103212311243. The reversal of 103212311231 is 132113212301.

It is a happy number.

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 103212311231 - 2¹⁴ = 103212294847 is a prime.

It is a super-2 number, since 2×103212311231² (a number of 23 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 (103212311261) 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, 16189520 + ... + 16195893.

It is an arithmetic number, because the mean of its divisors is an integer number (25811174958).

Almost surely, 2^103212311231 is an apocalyptic number.

103212311231 is a deficient number, since it is larger than the sum of its proper divisors (32388601).

103212311231 is an equidigital number, since it uses as much as digits as its factorization.

103212311231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32388600.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 103212311231 its reverse (132113212301), we get a palindrome (235325523532).

The spelling of 103212311231 in words is "one hundred three billion, two hundred twelve million, three hundred eleven thousand, two hundred thirty-one".