101213020111 has 18 divisors (see below), whose sum is σ = 120296077728. Its totient is φ = 84908096280.

The previous prime is 101213020087. The next prime is 101213020133. The reversal of 101213020111 is 111020312101.

It is a happy number.

It is not a de Polignac number, because 101213020111 - 2⁵ = 101213020079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101213020091 and 101213020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101213020151) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 359295 + ... + 575776.

Almost surely, 2^101213020111 is an apocalyptic number.

101213020111 is a deficient number, since it is larger than the sum of its proper divisors (19083057617).

101213020111 is an frugal number, since it uses more digits than its factorization.

101213020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935179 (or 935125 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 101213020111 its reverse (111020312101), we get a palindrome (212233332212).

The spelling of 101213020111 in words is "one hundred one billion, two hundred thirteen million, twenty thousand, one hundred eleven".