1040021100431 has 2 divisors, whose sum is σ = 1040021100432. Its totient is φ = 1040021100430.

The previous prime is 1040021100389. The next prime is 1040021100497. The reversal of 1040021100431 is 1340011200401.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1040021100431 - 2⁶ = 1040021100367 is a prime.

It is a super-2 number, since 2×1040021100431² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040029100431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520010550215 + 520010550216.

It is an arithmetic number, because the mean of its divisors is an integer number (520010550216).

Almost surely, 2^{1040021100431} is an apocalyptic number.

1040021100431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040021100431 is an equidigital number, since it uses as much as digits as its factorization.

1040021100431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1040021100431 its reverse (1340011200401), we get a palindrome (2380032300832).

The spelling of 1040021100431 in words is "one trillion, forty billion, twenty-one million, one hundred thousand, four hundred thirty-one".