1023403131 has 12 divisors (see below), whose sum is σ = 1478591400. Its totient is φ = 682110720.

The previous prime is 1023403123. The next prime is 1023403177. The reversal of 1023403131 is 1313043201.

1023403131 is a `hidden beast` number, since 10 + 2 + 340 + 313 + 1 = 666.

It is not a de Polignac number, because 1023403131 - 2³ = 1023403123 is a prime.

It is a super-2 number, since 2×1023403131² = 2094707937081206322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1023403231) 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, 38520 + ... + 59418.

It is an arithmetic number, because the mean of its divisors is an integer number (123215950).

Almost surely, 2^1023403131 is an apocalyptic number.

1023403131 is a deficient number, since it is larger than the sum of its proper divisors (455188269).

1023403131 is a wasteful number, since it uses less digits than its factorization.

1023403131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26346 (or 26343 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1023403131 is about 31990.6725624830. The cubic root of 1023403131 is about 1007.7409664850.

Adding to 1023403131 its reverse (1313043201), we get a palindrome (2336446332).

The spelling of 1023403131 in words is "one billion, twenty-three million, four hundred three thousand, one hundred thirty-one".