121771357130 has 32 divisors (see below), whose sum is σ = 219815164800. Its totient is φ = 48569406912.

The previous prime is 121771357129. The next prime is 121771357139. The reversal of 121771357130 is 31753177121.

It is not an unprimeable number, because it can be changed into a prime (121771357139) 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 15 ways as a sum of consecutive naturals, for example, 8316656 + ... + 8331284.

It is an arithmetic number, because the mean of its divisors is an integer number (6869223900).

Almost surely, 2^121771357130 is an apocalyptic number.

121771357130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121771357130 is a deficient number, since it is larger than the sum of its proper divisors (98043807670).

121771357130 is a wasteful number, since it uses less digits than its factorization.

121771357130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16958.

The product of its (nonzero) digits is 30870, while the sum is 38.

The spelling of 121771357130 in words is "one hundred twenty-one billion, seven hundred seventy-one million, three hundred fifty-seven thousand, one hundred thirty".