101211320201023 has 4 divisors (see below), whose sum is σ = 101290206656088. Its totient is φ = 101132433745960.

The previous prime is 101211320201021. The next prime is 101211320201081. The reversal of 101211320201023 is 320102023112101.

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 101211320201023 - 2¹ = 101211320201021 is a prime.

It is a super-2 number, since 2×101211320201023² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211320201021) 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, 39443225608 + ... + 39443228173.

It is an arithmetic number, because the mean of its divisors is an integer number (25322551664022).

Almost surely, 2^{101211320201023} is an apocalyptic number.

101211320201023 is a deficient number, since it is larger than the sum of its proper divisors (78886455065).

101211320201023 is an equidigital number, since it uses as much as digits as its factorization.

101211320201023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78886455064.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 101211320201023 its reverse (320102023112101), we get a palindrome (421313343313124).

The spelling of 101211320201023 in words is "one hundred one trillion, two hundred eleven billion, three hundred twenty million, two hundred one thousand, twenty-three".