131103291 has 16 divisors (see below), whose sum is σ = 194296320. Its totient is φ = 77956320.

The previous prime is 131103283. The next prime is 131103293. The reversal of 131103291 is 192301131.

It is not a de Polignac number, because 131103291 - 2³ = 131103283 is a prime.

It is a super-2 number, since 2×131103291² = 34376145822061362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131103293) 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, 35731 + ... + 39228.

It is an arithmetic number, because the mean of its divisors is an integer number (12143520).

Almost surely, 2^131103291 is an apocalyptic number.

131103291 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131103291 is a deficient number, since it is larger than the sum of its proper divisors (63193029).

131103291 is a wasteful number, since it uses less digits than its factorization.

131103291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75026.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 131103291 is about 11450.0345414326. The cubic root of 131103291 is about 508.0087560749.

The spelling of 131103291 in words is "one hundred thirty-one million, one hundred three thousand, two hundred ninety-one".