40430203313 has 2 divisors, whose sum is σ = 40430203314. Its totient is φ = 40430203312.

The previous prime is 40430203201. The next prime is 40430203351. The reversal of 40430203313 is 31330203404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39278483344 + 1151719969 = 198188^2 + 33937^2 .

It is a cyclic number.

It is not a de Polignac number, because 40430203313 - 2²⁰ = 40429154737 is a prime.

It is not a weakly prime, because it can be changed into another prime (40430203393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20215101656 + 20215101657.

It is an arithmetic number, because the mean of its divisors is an integer number (20215101657).

Almost surely, 2^40430203313 is an apocalyptic number.

It is an amenable number.

40430203313 is a deficient number, since it is larger than the sum of its proper divisors (1).

40430203313 is an equidigital number, since it uses as much as digits as its factorization.

40430203313 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 23.

Adding to 40430203313 its reverse (31330203404), we get a palindrome (71760406717).

Subtracting from 40430203313 its reverse (31330203404), we obtain a palindrome (9099999909).

The spelling of 40430203313 in words is "forty billion, four hundred thirty million, two hundred three thousand, three hundred thirteen".