312203021021011 has 8 divisors (see below), whose sum is σ = 313130101435424. Its totient is φ = 311275944524160.

The previous prime is 312203021020999. The next prime is 312203021021029. The reversal of 312203021021011 is 110120120302213.

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 312203021021011 - 2³⁷ = 312065582067539 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312203021021011.

It is not an unprimeable number, because it can be changed into a prime (312203021021711) 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, 268704541 + ... + 269863921.

It is an arithmetic number, because the mean of its divisors is an integer number (39141262679428).

Almost surely, 2^{312203021021011} is an apocalyptic number.

312203021021011 is a deficient number, since it is larger than the sum of its proper divisors (927080414413).

312203021021011 is a wasteful number, since it uses less digits than its factorization.

312203021021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1958781.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 312203021021011 its reverse (110120120302213), we get a palindrome (422323141323224).

The spelling of 312203021021011 in words is "three hundred twelve trillion, two hundred three billion, twenty-one million, twenty-one thousand, eleven".