1002130031 has 8 divisors (see below), whose sum is σ = 1152319104. Its totient is φ = 853697880.

The previous prime is 1002129959. The next prime is 1002130043. The reversal of 1002130031 is 1300312001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1002130031 is a prime.

It is a super-2 number, since 2×1002130031² = 2008529198064121922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002129994 and 1002130021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002130231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438005 + ... + 440286.

It is an arithmetic number, because the mean of its divisors is an integer number (144039888).

Almost surely, 2^1002130031 is an apocalyptic number.

1002130031 is a deficient number, since it is larger than the sum of its proper divisors (150189073).

1002130031 is an equidigital number, since it uses as much as digits as its factorization.

1002130031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878461.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1002130031 is about 31656.4374337985. The cubic root of 1002130031 is about 1000.7095068144.

Adding to 1002130031 its reverse (1300312001), we get a palindrome (2302442032).

The spelling of 1002130031 in words is "one billion, two million, one hundred thirty thousand, thirty-one".