312203020212311 has 16 divisors (see below), whose sum is σ = 330802368960000. Its totient is φ = 294026840366688.

The previous prime is 312203020212277. The next prime is 312203020212331. The reversal of 312203020212311 is 113212020302213.

It is a cyclic number.

It is not a de Polignac number, because 312203020212311 - 2¹⁰ = 312203020211287 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312203020212331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46798811 + ... + 53052188.

It is an arithmetic number, because the mean of its divisors is an integer number (20675148060000).

Almost surely, 2^{312203020212311} is an apocalyptic number.

312203020212311 is a deficient number, since it is larger than the sum of its proper divisors (18599348747689).

312203020212311 is a wasteful number, since it uses less digits than its factorization.

312203020212311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99853118.

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

Adding to 312203020212311 its reverse (113212020302213), we get a palindrome (425415040514524).

The spelling of 312203020212311 in words is "three hundred twelve trillion, two hundred three billion, twenty million, two hundred twelve thousand, three hundred eleven".