312155232451 has 8 divisors (see below), whose sum is σ = 318475365840. Its totient is φ = 305851040352.

The previous prime is 312155232439. The next prime is 312155232469. The reversal of 312155232451 is 154232551213.

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 312155232451 - 2¹⁹ = 312154708163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312155232401) 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, 3945760 + ... + 4024093.

It is an arithmetic number, because the mean of its divisors is an integer number (39809420730).

Almost surely, 2^312155232451 is an apocalyptic number.

312155232451 is a deficient number, since it is larger than the sum of its proper divisors (6320133389).

312155232451 is an equidigital number, since it uses as much as digits as its factorization.

312155232451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7970645.

The product of its digits is 36000, while the sum is 34.

Adding to 312155232451 its reverse (154232551213), we get a palindrome (466387783664).

The spelling of 312155232451 in words is "three hundred twelve billion, one hundred fifty-five million, two hundred thirty-two thousand, four hundred fifty-one".