101120121121 has 4 divisors (see below), whose sum is σ = 104382060544. Its totient is φ = 97858181700.

The previous prime is 101120121101. The next prime is 101120121143. The reversal of 101120121121 is 121121021101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101120121121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101120121101) 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, 1630969665 + ... + 1630969726.

It is an arithmetic number, because the mean of its divisors is an integer number (26095515136).

Almost surely, 2^101120121121 is an apocalyptic number.

It is an amenable number.

101120121121 is a deficient number, since it is larger than the sum of its proper divisors (3261939423).

101120121121 is an equidigital number, since it uses as much as digits as its factorization.

101120121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261939422.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101120121121 its reverse (121121021101), we get a palindrome (222241142222).

The spelling of 101120121121 in words is "one hundred one billion, one hundred twenty million, one hundred twenty-one thousand, one hundred twenty-one".