312240451213553 has 2 divisors, whose sum is σ = 312240451213554. Its totient is φ = 312240451213552.

The previous prime is 312240451213477. The next prime is 312240451213591. The reversal of 312240451213553 is 355312154042213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 307910439580129 + 4330011633424 = 17547377^2 + 2080868^2 .

It is a cyclic number.

It is not a de Polignac number, because 312240451213553 - 2²⁶ = 312240384104689 is a prime.

It is a super-2 number, since 2×312240451213553² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 312240451213553.

It is not a weakly prime, because it can be changed into another prime (312240451213253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156120225606776 + 156120225606777.

It is an arithmetic number, because the mean of its divisors is an integer number (156120225606777).

Almost surely, 2^{312240451213553} is an apocalyptic number.

It is an amenable number.

312240451213553 is a deficient number, since it is larger than the sum of its proper divisors (1).

312240451213553 is an equidigital number, since it uses as much as digits as its factorization.

312240451213553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432000, while the sum is 41.

The spelling of 312240451213553 in words is "three hundred twelve trillion, two hundred forty billion, four hundred fifty-one million, two hundred thirteen thousand, five hundred fifty-three".