2311032138 has 16 divisors (see below), whose sum is σ = 4622577120. Its totient is φ = 770258576.

The previous prime is 2311032137. The next prime is 2311032161. The reversal of 2311032138 is 8312301132.

It is not an unprimeable number, because it can be changed into a prime (2311032131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62593 + ... + 92411.

It is an arithmetic number, because the mean of its divisors is an integer number (288911070).

Almost surely, 2^2311032138 is an apocalyptic number.

2311032138 is an abundant number, since it is smaller than the sum of its proper divisors (2311544982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2311032138 is a wasteful number, since it uses less digits than its factorization.

2311032138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42741.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 2311032138 is about 48073.1956291653. The cubic root of 2311032138 is about 1322.1132621079.

The spelling of 2311032138 in words is "two billion, three hundred eleven million, thirty-two thousand, one hundred thirty-eight".