121866751807130 has 128 divisors (see below), whose sum is σ = 244791933076224. Its totient is φ = 43309819238400.

The previous prime is 121866751807123. The next prime is 121866751807147. The reversal of 121866751807130 is 31708157668121.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 764756822 + ... + 764916158.

It is an arithmetic number, because the mean of its divisors is an integer number (1912436977158).

Almost surely, 2^{121866751807130} is an apocalyptic number.

121866751807130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121866751807130 is an abundant number, since it is smaller than the sum of its proper divisors (122925181269094).

121866751807130 is a wasteful number, since it uses less digits than its factorization.

121866751807130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160240.

The product of its (nonzero) digits is 3386880, while the sum is 56.

The spelling of 121866751807130 in words is "one hundred twenty-one trillion, eight hundred sixty-six billion, seven hundred fifty-one million, eight hundred seven thousand, one hundred thirty".