31211301232101 has 4 divisors (see below), whose sum is σ = 41615068309472. Its totient is φ = 20807534154732.

The previous prime is 31211301232079. The next prime is 31211301232159. The reversal of 31211301232101 is 10123210311213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 31211301232101 - 2⁶ = 31211301232037 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 (31211301237101) 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, 5201883538681 + ... + 5201883538686.

It is an arithmetic number, because the mean of its divisors is an integer number (10403767077368).

Almost surely, 2^{31211301232101} is an apocalyptic number.

It is an amenable number.

31211301232101 is a deficient number, since it is larger than the sum of its proper divisors (10403767077371).

31211301232101 is a wasteful number, since it uses less digits than its factorization.

31211301232101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10403767077370.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 31211301232101 its reverse (10123210311213), we get a palindrome (41334511543314).

The spelling of 31211301232101 in words is "thirty-one trillion, two hundred eleven billion, three hundred one million, two hundred thirty-two thousand, one hundred one".