10230120091 has 4 divisors (see below), whose sum is σ = 10230984112. Its totient is φ = 10229256072.

The previous prime is 10230120083. The next prime is 10230120101. The reversal of 10230120091 is 19002103201.

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 10230120091 - 2³ = 10230120083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10230121091) 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, 414000 + ... + 438013.

It is an arithmetic number, because the mean of its divisors is an integer number (2557746028).

Almost surely, 2^10230120091 is an apocalyptic number.

10230120091 is a deficient number, since it is larger than the sum of its proper divisors (864021).

10230120091 is an equidigital number, since it uses as much as digits as its factorization.

10230120091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864020.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 10230120091 its reverse (19002103201), we get a palindrome (29232223292).

It can be divided in two parts, 10230 and 120091, that added together give a 4-th power (130321 = 19⁴).

The spelling of 10230120091 in words is "ten billion, two hundred thirty million, one hundred twenty thousand, ninety-one".