1001042431 has 2 divisors, whose sum is σ = 1001042432. Its totient is φ = 1001042430.

The previous prime is 1001042389. The next prime is 1001042509. The reversal of 1001042431 is 1342401001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1001042431 - 2¹⁵ = 1001009663 is a prime.

It is a super-2 number, since 2×1001042431² = 2004171897324779522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001042131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500521215 + 500521216.

It is an arithmetic number, because the mean of its divisors is an integer number (500521216).

Almost surely, 2^1001042431 is an apocalyptic number.

1001042431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001042431 is an equidigital number, since it uses as much as digits as its factorization.

1001042431 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 16.

The square root of 1001042431 is about 31639.2545898288. The cubic root of 1001042431 is about 1000.3473563296.

Adding to 1001042431 its reverse (1342401001), we get a palindrome (2343443432).

It can be divided in two parts, 10010 and 42431, that added together give a square (52441 = 229²).

The spelling of 1001042431 in words is "one billion, one million, forty-two thousand, four hundred thirty-one".