40201220431 has 2 divisors, whose sum is σ = 40201220432. Its totient is φ = 40201220430.

The previous prime is 40201220419. The next prime is 40201220443. The reversal of 40201220431 is 13402210204.

It is a balanced prime because it is at equal distance from previous prime (40201220419) and next prime (40201220443).

It is a cyclic number.

It is not a de Polignac number, because 40201220431 - 2¹⁷ = 40201089359 is a prime.

It is a super-2 number, since 2×40201220431² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40201220399 and 40201220408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40201220401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20100610215 + 20100610216.

It is an arithmetic number, because the mean of its divisors is an integer number (20100610216).

Almost surely, 2^40201220431 is an apocalyptic number.

40201220431 is a deficient number, since it is larger than the sum of its proper divisors (1).

40201220431 is an equidigital number, since it uses as much as digits as its factorization.

40201220431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 40201220431 its reverse (13402210204), we get a palindrome (53603430635).

The spelling of 40201220431 in words is "forty billion, two hundred one million, two hundred twenty thousand, four hundred thirty-one".