103011131 has 4 divisors (see below), whose sum is σ = 104462064. Its totient is φ = 101560200.

The previous prime is 103011121. The next prime is 103011137. The reversal of 103011131 is 131110301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103011131 - 2⁶ = 103011067 is a prime.

It is a super-2 number, since 2×103011131² = 21222586219798322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103011137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 725360 + ... + 725501.

It is an arithmetic number, because the mean of its divisors is an integer number (26115516).

Almost surely, 2^103011131 is an apocalyptic number.

103011131 is a deficient number, since it is larger than the sum of its proper divisors (1450933).

103011131 is an equidigital number, since it uses as much as digits as its factorization.

103011131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450932.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 103011131 is about 10149.4399352871. The cubic root of 103011131 is about 468.7716999495.

Adding to 103011131 its reverse (131110301), we get a palindrome (234121432).

The spelling of 103011131 in words is "one hundred three million, eleven thousand, one hundred thirty-one".