121513101 has 16 divisors (see below), whose sum is σ = 163473024. Its totient is φ = 80285184.

The previous prime is 121513057. The next prime is 121513187. The reversal of 121513101 is 101315121.

It is not a de Polignac number, because 121513101 - 2⁷ = 121512973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121513901) 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, 265665 + ... + 266121.

It is an arithmetic number, because the mean of its divisors is an integer number (10217064).

Almost surely, 2^121513101 is an apocalyptic number.

It is an amenable number.

121513101 is a deficient number, since it is larger than the sum of its proper divisors (41959923).

121513101 is a wasteful number, since it uses less digits than its factorization.

121513101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060.

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 121513101 is about 11023.2980999336. The cubic root of 121513101 is about 495.3068885664.

Adding to 121513101 its reverse (101315121), we get a palindrome (222828222).

The spelling of 121513101 in words is "one hundred twenty-one million, five hundred thirteen thousand, one hundred one".