312120422061 has 16 divisors (see below), whose sum is σ = 487212367488. Its totient is φ = 174004416000.

The previous prime is 312120422057. The next prime is 312120422063. The reversal of 312120422061 is 160224021213.

It is not a de Polignac number, because 312120422061 - 2² = 312120422057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312120422063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181253740 + ... + 181255461.

It is an arithmetic number, because the mean of its divisors is an integer number (30450772968).

Almost surely, 2^312120422061 is an apocalyptic number.

It is an amenable number.

312120422061 is a deficient number, since it is larger than the sum of its proper divisors (175091945427).

312120422061 is a wasteful number, since it uses less digits than its factorization.

312120422061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362509252.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 312120422061 its reverse (160224021213), we get a palindrome (472344443274).

The spelling of 312120422061 in words is "three hundred twelve billion, one hundred twenty million, four hundred twenty-two thousand, sixty-one".