131020023 has 8 divisors (see below), whose sum is σ = 174787200. Its totient is φ = 87299768.

The previous prime is 131020013. The next prime is 131020031. The reversal of 131020023 is 320020131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131020023 - 2⁴ = 131020007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131019990 and 131020008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131020013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4593 + ... + 16826.

It is an arithmetic number, because the mean of its divisors is an integer number (21848400).

Almost surely, 2^131020023 is an apocalyptic number.

131020023 is a deficient number, since it is larger than the sum of its proper divisors (43767177).

131020023 is a wasteful number, since it uses less digits than its factorization.

131020023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23461.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 131020023 is about 11446.3978176543. The cubic root of 131020023 is about 507.9011822897.

Adding to 131020023 its reverse (320020131), we get a palindrome (451040154).

The spelling of 131020023 in words is "one hundred thirty-one million, twenty thousand, twenty-three".