102023420131 has 4 divisors (see below), whose sum is σ = 102024883192. Its totient is φ = 102021957072.

The previous prime is 102023420119. The next prime is 102023420183. The reversal of 102023420131 is 131024320201.

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 102023420131 - 2⁵ = 102023420099 is a prime.

It is a super-2 number, since 2×102023420131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102023420099 and 102023420108.

It is not an unprimeable number, because it can be changed into a prime (102023420531) 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, 621405 + ... + 768238.

It is an arithmetic number, because the mean of its divisors is an integer number (25506220798).

Almost surely, 2^102023420131 is an apocalyptic number.

102023420131 is a deficient number, since it is larger than the sum of its proper divisors (1463061).

102023420131 is an equidigital number, since it uses as much as digits as its factorization.

102023420131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463060.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 102023420131 its reverse (131024320201), we get a palindrome (233047740332).

The spelling of 102023420131 in words is "one hundred two billion, twenty-three million, four hundred twenty thousand, one hundred thirty-one".