1042111340431 has 16 divisors (see below), whose sum is σ = 1227589028416. Its totient is φ = 865959123456.

The previous prime is 1042111340419. The next prime is 1042111340483. The reversal of 1042111340431 is 1340431112401.

It is not a de Polignac number, because 1042111340431 - 2²³ = 1042102951823 is a prime.

It is a super-2 number, since 2×1042111340431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1042111340396 and 1042111340405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042111340131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7191066 + ... + 7334551.

It is an arithmetic number, because the mean of its divisors is an integer number (76724314276).

Almost surely, 2^{1042111340431} is an apocalyptic number.

1042111340431 is a deficient number, since it is larger than the sum of its proper divisors (185477687985).

1042111340431 is a wasteful number, since it uses less digits than its factorization.

1042111340431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14525938.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 1042111340431 its reverse (1340431112401), we get a palindrome (2382542452832).

The spelling of 1042111340431 in words is "one trillion, forty-two billion, one hundred eleven million, three hundred forty thousand, four hundred thirty-one".