101023031 has 4 divisors (see below), whose sum is σ = 101203032. Its totient is φ = 100843032.

The previous prime is 101023007. The next prime is 101023051. The reversal of 101023031 is 130320101.

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 101023031 - 2⁶ = 101022967 is a prime.

It is a super-2 number, since 2×101023031² = 20411305584853922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101023051) 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, 89156 + ... + 90281.

It is an arithmetic number, because the mean of its divisors is an integer number (25300758).

Almost surely, 2^101023031 is an apocalyptic number.

101023031 is a deficient number, since it is larger than the sum of its proper divisors (180001).

101023031 is an equidigital number, since it uses as much as digits as its factorization.

101023031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180000.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 101023031 is about 10051.0213908836. The cubic root of 101023031 is about 465.7363459733.

Adding to 101023031 its reverse (130320101), we get a palindrome (231343132).

The spelling of 101023031 in words is "one hundred one million, twenty-three thousand, thirty-one".