31212103122023 has 8 divisors (see below), whose sum is σ = 31607322881280. Its totient is φ = 30816886609080.

The previous prime is 31212103121987. The next prime is 31212103122041. The reversal of 31212103122023 is 32022130121213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31212103122023 - 2⁶ = 31212103121959 is a prime.

It is a super-2 number, since 2×31212103122023² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31212103122023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31212103122223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22896236 + ... + 24221102.

It is an arithmetic number, because the mean of its divisors is an integer number (3950915360160).

Almost surely, 2^{31212103122023} is an apocalyptic number.

31212103122023 is a deficient number, since it is larger than the sum of its proper divisors (395219759257).

31212103122023 is a wasteful number, since it uses less digits than its factorization.

31212103122023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623157.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31212103122023 its reverse (32022130121213), we get a palindrome (63234233243236).

The spelling of 31212103122023 in words is "thirty-one trillion, two hundred twelve billion, one hundred three million, one hundred twenty-two thousand, twenty-three".