101012120023 has 4 divisors (see below), whose sum is σ = 101082907800. Its totient is φ = 100941332248.

The previous prime is 101012120017. The next prime is 101012120093. The reversal of 101012120023 is 320021210101.

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 101012120023 - 2¹³ = 101012111831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101012119985 and 101012120012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101012120003) 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 3 ways as a sum of consecutive naturals, for example, 35391748 + ... + 35394601.

It is an arithmetic number, because the mean of its divisors is an integer number (25270726950).

Almost surely, 2^101012120023 is an apocalyptic number.

101012120023 is a deficient number, since it is larger than the sum of its proper divisors (70787777).

101012120023 is an equidigital number, since it uses as much as digits as its factorization.

101012120023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70787776.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 101012120023 its reverse (320021210101), we get a palindrome (421033330124).

The spelling of 101012120023 in words is "one hundred one billion, twelve million, one hundred twenty thousand, twenty-three".