121754013213 has 32 divisors (see below), whose sum is σ = 186104540160. Its totient is φ = 69358584960.

The previous prime is 121754013187. The next prime is 121754013223. The reversal of 121754013213 is 312310457121.

It is not a de Polignac number, because 121754013213 - 2²¹ = 121751916061 is a prime.

It is a super-3 number, since 3×121754013213³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121754013223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9374358 + ... + 9387336.

It is an arithmetic number, because the mean of its divisors is an integer number (5815766880).

Almost surely, 2^121754013213 is an apocalyptic number.

It is an amenable number.

121754013213 is a deficient number, since it is larger than the sum of its proper divisors (64350526947).

121754013213 is a wasteful number, since it uses less digits than its factorization.

121754013213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14337.

The product of its (nonzero) digits is 5040, while the sum is 30.

The spelling of 121754013213 in words is "one hundred twenty-one billion, seven hundred fifty-four million, thirteen thousand, two hundred thirteen".