101211020023 has 4 divisors (see below), whose sum is σ = 101213404848. Its totient is φ = 101208635200.

The previous prime is 101211019999. The next prime is 101211020039. The reversal of 101211020023 is 320020112101.

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 101211020023 - 2²⁹ = 100674149111 is a prime.

It is a super-2 number, since 2×101211020023² (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 = 101211019985 and 101211020012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211020083) 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, 1127578 + ... + 1214023.

It is an arithmetic number, because the mean of its divisors is an integer number (25303351212).

Almost surely, 2^101211020023 is an apocalyptic number.

101211020023 is a deficient number, since it is larger than the sum of its proper divisors (2384825).

101211020023 is an equidigital number, since it uses as much as digits as its factorization.

101211020023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384824.

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

Adding to 101211020023 its reverse (320020112101), we get a palindrome (421231132124).

The spelling of 101211020023 in words is "one hundred one billion, two hundred eleven million, twenty thousand, twenty-three".