1012003131 has 4 divisors (see below), whose sum is σ = 1349337512. Its totient is φ = 674668752.

The previous prime is 1012003121. The next prime is 1012003177. The reversal of 1012003131 is 1313002101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1313002101 = 3 ⋅437667367.

It is not a de Polignac number, because 1012003131 - 2⁶ = 1012003067 is a prime.

It is a super-2 number, since 2×1012003131² = 2048300674307606322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012003121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168667186 + ... + 168667191.

It is an arithmetic number, because the mean of its divisors is an integer number (337334378).

Almost surely, 2^1012003131 is an apocalyptic number.

1012003131 is a deficient number, since it is larger than the sum of its proper divisors (337334381).

1012003131 is an equidigital number, since it uses as much as digits as its factorization.

1012003131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337334380.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1012003131 is about 31811.9966522065. The cubic root of 1012003131 is about 1003.9851412197.

Adding to 1012003131 its reverse (1313002101), we get a palindrome (2325005232).

The spelling of 1012003131 in words is "one billion, twelve million, three thousand, one hundred thirty-one".