2311521114 has 64 divisors (see below), whose sum is σ = 5803407360. Its totient is φ = 598466880.

The previous prime is 2311521109. The next prime is 2311521143. The reversal of 2311521114 is 4111251132.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44617 + ... + 81324.

It is an arithmetic number, because the mean of its divisors is an integer number (90678240).

Almost surely, 2^2311521114 is an apocalyptic number.

2311521114 is an abundant number, since it is smaller than the sum of its proper divisors (3491886246).

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

2311521114 is a wasteful number, since it uses less digits than its factorization.

2311521114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125995.

The product of its digits is 240, while the sum is 21.

The square root of 2311521114 is about 48078.2811048814. The cubic root of 2311521114 is about 1322.2065012649.

Adding to 2311521114 its reverse (4111251132), we get a palindrome (6422772246).

The spelling of 2311521114 in words is "two billion, three hundred eleven million, five hundred twenty-one thousand, one hundred fourteen".