312113123020133 has 8 divisors (see below), whose sum is σ = 319790768924760. Its totient is φ = 304438578577920.

The previous prime is 312113123020091. The next prime is 312113123020177. The reversal of 312113123020133 is 331020321311213.

It can be written as a sum of positive squares in 4 ways, for example, as 118523132769889 + 193589990250244 = 10886833^2 + 13913662^2 .

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 312113123020133 - 2¹⁴ = 312113123003749 is a prime.

It is a super-2 number, since 2×312113123020133² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312113123020183) 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, 775161860 + ... + 775564397.

It is an arithmetic number, because the mean of its divisors is an integer number (39973846115595).

Almost surely, 2^{312113123020133} is an apocalyptic number.

It is an amenable number.

312113123020133 is a deficient number, since it is larger than the sum of its proper divisors (7677645904627).

312113123020133 is a wasteful number, since it uses less digits than its factorization.

312113123020133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550731207.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 312113123020133 its reverse (331020321311213), we get a palindrome (643133444331346).

The spelling of 312113123020133 in words is "three hundred twelve trillion, one hundred thirteen billion, one hundred twenty-three million, twenty thousand, one hundred thirty-three".