101212331023 has 4 divisors (see below), whose sum is σ = 101213673120. Its totient is φ = 101210988928.

The previous prime is 101212331009. The next prime is 101212331041. The reversal of 101212331023 is 320133212101.

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 101212331023 - 2¹³ = 101212322831 is a prime.

It is a super-2 number, since 2×101212331023² (a number of 23 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 (101212331093) 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, 550738 + ... + 711151.

It is an arithmetic number, because the mean of its divisors is an integer number (25303418280).

Almost surely, 2^101212331023 is an apocalyptic number.

101212331023 is a deficient number, since it is larger than the sum of its proper divisors (1342097).

101212331023 is an equidigital number, since it uses as much as digits as its factorization.

101212331023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342096.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 101212331023 its reverse (320133212101), we get a palindrome (421345543124).

The spelling of 101212331023 in words is "one hundred one billion, two hundred twelve million, three hundred thirty-one thousand, twenty-three".