31023212110111 has 8 divisors (see below), whose sum is σ = 33411729000384. Its totient is φ = 28634997499680.

The previous prime is 31023212110103. The next prime is 31023212110129. The reversal of 31023212110111 is 11101121232013.

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

It is not a de Polignac number, because 31023212110111 - 2³ = 31023212110103 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 (31023212110181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75356776 + ... + 75767341.

It is an arithmetic number, because the mean of its divisors is an integer number (4176466125048).

Almost surely, 2^{31023212110111} is an apocalyptic number.

31023212110111 is a deficient number, since it is larger than the sum of its proper divisors (2388516890273).

31023212110111 is a wasteful number, since it uses less digits than its factorization.

31023212110111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151139921.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 31023212110111 its reverse (11101121232013), we get a palindrome (42124333342124).

The spelling of 31023212110111 in words is "thirty-one trillion, twenty-three billion, two hundred twelve million, one hundred ten thousand, one hundred eleven".