101002120111 has 4 divisors (see below), whose sum is σ = 106943421312. Its totient is φ = 95060818912.

The previous prime is 101002120099. The next prime is 101002120129. The reversal of 101002120111 is 111021200101.

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 101002120111 - 2¹³ = 101002111919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101002120711) 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, 2970650575 + ... + 2970650608.

It is an arithmetic number, because the mean of its divisors is an integer number (26735855328).

Almost surely, 2^101002120111 is an apocalyptic number.

101002120111 is a deficient number, since it is larger than the sum of its proper divisors (5941301201).

101002120111 is an equidigital number, since it uses as much as digits as its factorization.

101002120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5941301200.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 101002120111 its reverse (111021200101), we get a palindrome (212023320212).

The spelling of 101002120111 in words is "one hundred one billion, two million, one hundred twenty thousand, one hundred eleven".