131030023 has 4 divisors (see below), whose sum is σ = 137926360. Its totient is φ = 124133688.

The previous prime is 131029993. The next prime is 131030047. The reversal of 131030023 is 320030131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320030131 = 37 ⋅8649463.

It is not a de Polignac number, because 131030023 - 2¹⁷ = 130898951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131029985 and 131030012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131030083) 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, 3448140 + ... + 3448177.

It is an arithmetic number, because the mean of its divisors is an integer number (34481590).

Almost surely, 2^131030023 is an apocalyptic number.

131030023 is a deficient number, since it is larger than the sum of its proper divisors (6896337).

131030023 is an equidigital number, since it uses as much as digits as its factorization.

131030023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6896336.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 131030023 is about 11446.8346279659. The cubic root of 131030023 is about 507.9141036801.

Adding to 131030023 its reverse (320030131), we get a palindrome (451060154).

The spelling of 131030023 in words is "one hundred thirty-one million, thirty thousand, twenty-three".