31213002013223 has 8 divisors (see below), whose sum is σ = 31639925695248. Its totient is φ = 30788582282944.

The previous prime is 31213002013183. The next prime is 31213002013243. The reversal of 31213002013223 is 32231020031213.

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 31213002013223 - 2⁶ = 31213002013159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31213002013243) 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, 625962836 + ... + 626012697.

It is an arithmetic number, because the mean of its divisors is an integer number (3954990711906).

Almost surely, 2^{31213002013223} is an apocalyptic number.

31213002013223 is a deficient number, since it is larger than the sum of its proper divisors (426923682025).

31213002013223 is a wasteful number, since it uses less digits than its factorization.

31213002013223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251975873.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31213002013223 its reverse (32231020031213), we get a palindrome (63444022044436).

The spelling of 31213002013223 in words is "thirty-one trillion, two hundred thirteen billion, two million, thirteen thousand, two hundred twenty-three".