131022023 has 4 divisors (see below), whose sum is σ = 142933128. Its totient is φ = 119110920.

The previous prime is 131022011. The next prime is 131022037. The reversal of 131022023 is 320220131.

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 131022023 - 2⁶ = 131021959 is a prime.

It is a super-2 number, since 2×131022023² = 34333541022025058, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 131021989 and 131022007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131052023) 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, 5955536 + ... + 5955557.

It is an arithmetic number, because the mean of its divisors is an integer number (35733282).

Almost surely, 2^131022023 is an apocalyptic number.

131022023 is a deficient number, since it is larger than the sum of its proper divisors (11911105).

131022023 is a wasteful number, since it uses less digits than its factorization.

131022023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11911104.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 131022023 is about 11446.4851810501. The cubic root of 131022023 is about 507.9037666203.

Adding to 131022023 its reverse (320220131), we get a palindrome (451242154).

The spelling of 131022023 in words is "one hundred thirty-one million, twenty-two thousand, twenty-three".