1042204131 has 16 divisors (see below), whose sum is σ = 1625270400. Its totient is φ = 658233864.

The previous prime is 1042204127. The next prime is 1042204139. The reversal of 1042204131 is 1314022401.

It is not a de Polignac number, because 1042204131 - 2² = 1042204127 is a prime.

It is a super-2 number, since 2×1042204131² = 2172378901346930322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1042204139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1015281 + ... + 1016306.

It is an arithmetic number, because the mean of its divisors is an integer number (101579400).

Almost surely, 2^1042204131 is an apocalyptic number.

1042204131 is a deficient number, since it is larger than the sum of its proper divisors (583066269).

1042204131 is a wasteful number, since it uses less digits than its factorization.

1042204131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031615 (or 2031609 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1042204131 is about 32283.1865062915. The cubic root of 1042204131 is about 1013.8746475063.

Adding to 1042204131 its reverse (1314022401), we get a palindrome (2356226532).

The spelling of 1042204131 in words is "one billion, forty-two million, two hundred four thousand, one hundred thirty-one".