2311231323331 has 64 divisors (see below), whose sum is σ = 2825758172160. Its totient is φ = 1848397824000.

The previous prime is 2311231323241. The next prime is 2311231323353. The reversal of 2311231323331 is 1333231321132.

It is a happy number.

It is not a de Polignac number, because 2311231323331 - 2²¹ = 2311229226179 is a prime.

It is a super-2 number, since 2×2311231323331² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2311231323331.

It is not an unprimeable number, because it can be changed into a prime (2311231323431) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 698888980 + ... + 698892286.

It is an arithmetic number, because the mean of its divisors is an integer number (44152471440).

Almost surely, 2^{2311231323331} is an apocalyptic number.

2311231323331 is a deficient number, since it is larger than the sum of its proper divisors (514526848829).

2311231323331 is a wasteful number, since it uses less digits than its factorization.

2311231323331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4156.

The product of its digits is 5832, while the sum is 28.

Adding to 2311231323331 its reverse (1333231321132), we get a palindrome (3644462644463).

The spelling of 2311231323331 in words is "two trillion, three hundred eleven billion, two hundred thirty-one million, three hundred twenty-three thousand, three hundred thirty-one".