121354134150 has 24 divisors (see below), whose sum is σ = 300958253064. Its totient is φ = 32361102400.

The previous prime is 121354134107. The next prime is 121354134157. The reversal of 121354134150 is 51431453121.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121354134157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 404513631 + ... + 404513930.

It is an arithmetic number, because the mean of its divisors is an integer number (12539927211).

Almost surely, 2^121354134150 is an apocalyptic number.

121354134150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121354134150 is an abundant number, since it is smaller than the sum of its proper divisors (179604118914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121354134150 is a wasteful number, since it uses less digits than its factorization.

121354134150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809027576 (or 809027571 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 121354134150 its reverse (51431453121), we get a palindrome (172785587271).

The spelling of 121354134150 in words is "one hundred twenty-one billion, three hundred fifty-four million, one hundred thirty-four thousand, one hundred fifty".