40431234004261 has 2 divisors, whose sum is σ = 40431234004262. Its totient is φ = 40431234004260.

The previous prime is 40431234004237. The next prime is 40431234004283. The reversal of 40431234004261 is 16240043213404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21009673144161 + 19421560860100 = 4583631^2 + 4406990^2 .

It is a cyclic number.

It is not a de Polignac number, because 40431234004261 - 2¹⁷ = 40431233873189 is a prime.

It is a super-2 number, since 2×40431234004261² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40431234004201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20215617002130 + 20215617002131.

It is an arithmetic number, because the mean of its divisors is an integer number (20215617002131).

Almost surely, 2^{40431234004261} is an apocalyptic number.

It is an amenable number.

40431234004261 is a deficient number, since it is larger than the sum of its proper divisors (1).

40431234004261 is an equidigital number, since it uses as much as digits as its factorization.

40431234004261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 40431234004261 its reverse (16240043213404), we get a palindrome (56671277217665).

The spelling of 40431234004261 in words is "forty trillion, four hundred thirty-one billion, two hundred thirty-four million, four thousand, two hundred sixty-one".