40312021303 has 2 divisors, whose sum is σ = 40312021304. Its totient is φ = 40312021302.

The previous prime is 40312021157. The next prime is 40312021331. The reversal of 40312021303 is 30312021304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40312021303 - 2¹⁷ = 40311890231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40312021003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20156010651 + 20156010652.

It is an arithmetic number, because the mean of its divisors is an integer number (20156010652).

Almost surely, 2^40312021303 is an apocalyptic number.

40312021303 is a deficient number, since it is larger than the sum of its proper divisors (1).

40312021303 is an equidigital number, since it uses as much as digits as its factorization.

40312021303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 40312021303 its reverse (30312021304), we get a palindrome (70624042607).

Subtracting from 40312021303 its reverse (30312021304), we obtain a palindrome (9999999999).

The spelling of 40312021303 in words is "forty billion, three hundred twelve million, twenty-one thousand, three hundred three".