102031320023 has 4 divisors (see below), whose sum is σ = 102394421088. Its totient is φ = 101668218960.

The previous prime is 102031320007. The next prime is 102031320037. The reversal of 102031320023 is 320023130201.

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 102031320023 - 2⁴ = 102031320007 is a prime.

It is a super-3 number, since 3×102031320023³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102031319983 and 102031320010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102031320323) 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, 181550111 + ... + 181550672.

It is an arithmetic number, because the mean of its divisors is an integer number (25598605272).

Almost surely, 2^102031320023 is an apocalyptic number.

102031320023 is a deficient number, since it is larger than the sum of its proper divisors (363101065).

102031320023 is an equidigital number, since it uses as much as digits as its factorization.

102031320023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363101064.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 102031320023 its reverse (320023130201), we get a palindrome (422054450224).

The spelling of 102031320023 in words is "one hundred two billion, thirty-one million, three hundred twenty thousand, twenty-three".