101201001023 has 4 divisors (see below), whose sum is σ = 101270652168. Its totient is φ = 101131349880.

The previous prime is 101201001017. The next prime is 101201001047. The reversal of 101201001023 is 320100102101.

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 101201001023 - 2⁴ = 101201001007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101201000995 and 101201001013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101201001053) 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, 34823393 + ... + 34826298.

It is an arithmetic number, because the mean of its divisors is an integer number (25317663042).

Almost surely, 2^101201001023 is an apocalyptic number.

101201001023 is a deficient number, since it is larger than the sum of its proper divisors (69651145).

101201001023 is an equidigital number, since it uses as much as digits as its factorization.

101201001023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69651144.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 101201001023 its reverse (320100102101), we get a palindrome (421301103124).

The spelling of 101201001023 in words is "one hundred one billion, two hundred one million, one thousand, twenty-three".