131102019 has 12 divisors (see below), whose sum is σ = 192943296. Its totient is φ = 85751952.

The previous prime is 131102017. The next prime is 131102021. The reversal of 131102019 is 910201131.

It is an interprime number because it is at equal distance from previous prime (131102017) and next prime (131102021).

It is not a de Polignac number, because 131102019 - 2¹ = 131102017 is a prime.

It is a super-2 number, since 2×131102019² = 34375478771752722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131101992 and 131102010.

It is not an unprimeable number, because it can be changed into a prime (131102017) 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, 136947 + ... + 137900.

It is an arithmetic number, because the mean of its divisors is an integer number (16078608).

Almost surely, 2^131102019 is an apocalyptic number.

131102019 is a deficient number, since it is larger than the sum of its proper divisors (61841277).

131102019 is a wasteful number, since it uses less digits than its factorization.

131102019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274906 (or 274903 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 131102019 is about 11449.9789956139. The cubic root of 131102019 is about 508.0071131230.

It can be divided in two parts, 13110 and 2019, that added together give a square (15129 = 123²).

The spelling of 131102019 in words is "one hundred thirty-one million, one hundred two thousand, nineteen".