312231121231245 has 8 divisors (see below), whose sum is σ = 499569793970016. Its totient is φ = 166523264656656.

The previous prime is 312231121231241. The next prime is 312231121231307. The reversal of 312231121231245 is 542132121132213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 312231121231245 - 2² = 312231121231241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312231121231241) 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, 10407704041027 + ... + 10407704041056.

It is an arithmetic number, because the mean of its divisors is an integer number (62446224246252).

Almost surely, 2^{312231121231245} is an apocalyptic number.

It is an amenable number.

312231121231245 is a deficient number, since it is larger than the sum of its proper divisors (187338672738771).

312231121231245 is a wasteful number, since it uses less digits than its factorization.

312231121231245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20815408082091.

The product of its digits is 17280, while the sum is 33.

Adding to 312231121231245 its reverse (542132121132213), we get a palindrome (854363242363458).

The spelling of 312231121231245 in words is "three hundred twelve trillion, two hundred thirty-one billion, one hundred twenty-one million, two hundred thirty-one thousand, two hundred forty-five".