611312123065 has 16 divisors (see below), whose sum is σ = 838453891968. Its totient is φ = 419143965696.

The previous prime is 611312122961. The next prime is 611312123131. The reversal of 611312123065 is 560321213116.

611312123065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-611312123065 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 503592 + ... + 1215001.

It is an arithmetic number, because the mean of its divisors is an integer number (52403368248).

Almost surely, 2^611312123065 is an apocalyptic number.

It is an amenable number.

611312123065 is a deficient number, since it is larger than the sum of its proper divisors (227141768903).

611312123065 is a wasteful number, since it uses less digits than its factorization.

611312123065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728768.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 611312123065 in words is "six hundred eleven billion, three hundred twelve million, one hundred twenty-three thousand, sixty-five".