2311231022 has 24 divisors (see below), whose sum is σ = 3874166496. Its totient is φ = 1030388544.

The previous prime is 2311230997. The next prime is 2311231033. The reversal of 2311231022 is 2201321132.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81878 + ... + 106425.

It is an arithmetic number, because the mean of its divisors is an integer number (161423604).

Almost surely, 2^2311231022 is an apocalyptic number.

2311231022 is a deficient number, since it is larger than the sum of its proper divisors (1562935474).

2311231022 is a wasteful number, since it uses less digits than its factorization.

2311231022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188360 (or 188341 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2311231022 is about 48075.2641386399. The cubic root of 2311231022 is about 1322.1511873892.

Adding to 2311231022 its reverse (2201321132), we get a palindrome (4512552154).

The spelling of 2311231022 in words is "two billion, three hundred eleven million, two hundred thirty-one thousand, twenty-two".