101123010121 has 16 divisors (see below), whose sum is σ = 122470266240. Its totient is φ = 81646830720.

The previous prime is 101123010083. The next prime is 101123010139. The reversal of 101123010121 is 121010321101.

It is a happy number.

It is not a de Polignac number, because 101123010121 - 2⁷ = 101123009993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101123010151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6066591 + ... + 6083236.

It is an arithmetic number, because the mean of its divisors is an integer number (7654391640).

Almost surely, 2^101123010121 is an apocalyptic number.

It is an amenable number.

101123010121 is a deficient number, since it is larger than the sum of its proper divisors (21347256119).

101123010121 is a wasteful number, since it uses less digits than its factorization.

101123010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12149904.

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

Adding to 101123010121 its reverse (121010321101), we get a palindrome (222133331222).

The spelling of 101123010121 in words is "one hundred one billion, one hundred twenty-three million, ten thousand, one hundred twenty-one".