131120534 has 4 divisors (see below), whose sum is σ = 196680804. Its totient is φ = 65560266.

The previous prime is 131120519. The next prime is 131120557. The reversal of 131120534 is 435021131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 435021131 = 19 ⋅22895849.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32780132 + ... + 32780135.

It is an arithmetic number, because the mean of its divisors is an integer number (49170201).

Almost surely, 2^131120534 is an apocalyptic number.

131120534 is a deficient number, since it is larger than the sum of its proper divisors (65560270).

131120534 is an equidigital number, since it uses as much as digits as its factorization.

131120534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65560269.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 131120534 is about 11450.7874838371. The cubic root of 131120534 is about 508.0310265837.

Adding to 131120534 its reverse (435021131), we get a palindrome (566141665).

The spelling of 131120534 in words is "one hundred thirty-one million, one hundred twenty thousand, five hundred thirty-four".