312231021101 has 8 divisors (see below), whose sum is σ = 344971358784. Its totient is φ = 281087773120.

The previous prime is 312231021097. The next prime is 312231021107. The reversal of 312231021101 is 101120132213.

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 312231021101 - 2² = 312231021097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 312231021101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312231021107) 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, 399272015 + ... + 399272796.

It is an arithmetic number, because the mean of its divisors is an integer number (43121419848).

Almost surely, 2^312231021101 is an apocalyptic number.

It is an amenable number.

312231021101 is a deficient number, since it is larger than the sum of its proper divisors (32740337683).

312231021101 is a wasteful number, since it uses less digits than its factorization.

312231021101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798544851.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 312231021101 its reverse (101120132213), we get a palindrome (413351153314).

The spelling of 312231021101 in words is "three hundred twelve billion, two hundred thirty-one million, twenty-one thousand, one hundred one".