240223313131 has 2 divisors, whose sum is σ = 240223313132. Its totient is φ = 240223313130.

The previous prime is 240223313107. The next prime is 240223313173. The reversal of 240223313131 is 131313322042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 240223313131 - 2⁷ = 240223313003 is a prime.

It is a super-2 number, since 2×240223313131² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 240223313096 and 240223313105.

It is not a weakly prime, because it can be changed into another prime (240223313101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120111656565 + 120111656566.

It is an arithmetic number, because the mean of its divisors is an integer number (120111656566).

Almost surely, 2^240223313131 is an apocalyptic number.

240223313131 is a deficient number, since it is larger than the sum of its proper divisors (1).

240223313131 is an equidigital number, since it uses as much as digits as its factorization.

240223313131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 240223313131 its reverse (131313322042), we get a palindrome (371536635173).

The spelling of 240223313131 in words is "two hundred forty billion, two hundred twenty-three million, three hundred thirteen thousand, one hundred thirty-one".