2312129277 has 12 divisors (see below), whose sum is σ = 3421199964. Its totient is φ = 1503823680.

The previous prime is 2312129243. The next prime is 2312129279. The reversal of 2312129277 is 7729212132.

2312129277 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1339999236 + 972130041 = 36606^2 + 31179^2 .

It is not a de Polignac number, because 2312129277 - 2⁶ = 2312129213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312129279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3132598 + ... + 3133335.

It is an arithmetic number, because the mean of its divisors is an integer number (285099997).

Almost surely, 2^2312129277 is an apocalyptic number.

It is an amenable number.

2312129277 is a deficient number, since it is larger than the sum of its proper divisors (1109070687).

2312129277 is a wasteful number, since it uses less digits than its factorization.

2312129277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6265980 (or 6265977 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 2312129277 is about 48084.6054054726. The cubic root of 2312129277 is about 1322.3224489493.

The spelling of 2312129277 in words is "two billion, three hundred twelve million, one hundred twenty-nine thousand, two hundred seventy-seven".