121300021011 has 16 divisors (see below), whose sum is σ = 181747190016. Its totient is φ = 71400680736.

The previous prime is 121300021009. The next prime is 121300021013. The reversal of 121300021011 is 110120003121.

It is an interprime number because it is at equal distance from previous prime (121300021009) and next prime (121300021013).

It is not a de Polignac number, because 121300021011 - 2¹ = 121300021009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121300021013) 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, 67613385 + ... + 67615178.

It is an arithmetic number, because the mean of its divisors is an integer number (11359199376).

Almost surely, 2^121300021011 is an apocalyptic number.

121300021011 is a deficient number, since it is larger than the sum of its proper divisors (60447169005).

121300021011 is a wasteful number, since it uses less digits than its factorization.

121300021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135228602.

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

Adding to 121300021011 its reverse (110120003121), we get a palindrome (231420024132).

The spelling of 121300021011 in words is "one hundred twenty-one billion, three hundred million, twenty-one thousand, eleven".