312133125454 has 4 divisors (see below), whose sum is σ = 468199688184. Its totient is φ = 156066562726.

The previous prime is 312133125439. The next prime is 312133125461. The reversal of 312133125454 is 454521331213.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×312133125454² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78033281362 + ... + 78033281365.

It is an arithmetic number, because the mean of its divisors is an integer number (117049922046).

Almost surely, 2^312133125454 is an apocalyptic number.

312133125454 is a deficient number, since it is larger than the sum of its proper divisors (156066562730).

312133125454 is a wasteful number, since it uses less digits than its factorization.

312133125454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156066562729.

The product of its digits is 43200, while the sum is 34.

Adding to 312133125454 its reverse (454521331213), we get a palindrome (766654456667).

The spelling of 312133125454 in words is "three hundred twelve billion, one hundred thirty-three million, one hundred twenty-five thousand, four hundred fifty-four".