121355652134 has 16 divisors (see below), whose sum is σ = 192721794480. Its totient is φ = 57151974240.

The previous prime is 121355652091. The next prime is 121355652137. The reversal of 121355652134 is 431256553121.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121355652137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9223397 + ... + 9236544.

It is an arithmetic number, because the mean of its divisors is an integer number (12045112155).

Almost surely, 2^121355652134 is an apocalyptic number.

121355652134 is a deficient number, since it is larger than the sum of its proper divisors (71366142346).

121355652134 is a wasteful number, since it uses less digits than its factorization.

121355652134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18460135.

The product of its digits is 108000, while the sum is 38.

The spelling of 121355652134 in words is "one hundred twenty-one billion, three hundred fifty-five million, six hundred fifty-two thousand, one hundred thirty-four".