101231120213 has 8 divisors (see below), whose sum is σ = 102472776000. Its totient is φ = 99991780768.

The previous prime is 101231120203. The next prime is 101231120231. The reversal of 101231120213 is 312021132101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101231120213 - 2⁴ = 101231120197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 101231120191 and 101231120200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101231120203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491063 + ... + 666036.

It is an arithmetic number, because the mean of its divisors is an integer number (12809097000).

Almost surely, 2^101231120213 is an apocalyptic number.

It is an amenable number.

101231120213 is a deficient number, since it is larger than the sum of its proper divisors (1241655787).

101231120213 is an equidigital number, since it uses as much as digits as its factorization.

101231120213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158171.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 101231120213 its reverse (312021132101), we get a palindrome (413252252314).

The spelling of 101231120213 in words is "one hundred one billion, two hundred thirty-one million, one hundred twenty thousand, two hundred thirteen".