1042143143531 has 12 divisors (see below), whose sum is σ = 1238082347808. Its totient is φ = 874259899632.

The previous prime is 1042143143521. The next prime is 1042143143579. The reversal of 1042143143531 is 1353413412401.

1042143143531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1042143143531 - 2³⁴ = 1024963274347 is a prime.

It is a super-2 number, since 2×1042143143531² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1042143143521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226255436 + ... + 226260041.

It is an arithmetic number, because the mean of its divisors is an integer number (103173528984).

Almost surely, 2^{1042143143531} is an apocalyptic number.

1042143143531 is a deficient number, since it is larger than the sum of its proper divisors (195939204277).

1042143143531 is an equidigital number, since it uses as much as digits as its factorization.

1042143143531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452515538 (or 452515531 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 1042143143531 its reverse (1353413412401), we get a palindrome (2395556555932).

The spelling of 1042143143531 in words is "one trillion, forty-two billion, one hundred forty-three million, one hundred forty-three thousand, five hundred thirty-one".