121402527375 has 32 divisors (see below), whose sum is σ = 202800012480. Its totient is φ = 64496025600.

The previous prime is 121402527371. The next prime is 121402527377. The reversal of 121402527375 is 573725204121.

It is not a de Polignac number, because 121402527375 - 2² = 121402527371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121402527371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 533470 + ... + 726219.

It is an arithmetic number, because the mean of its divisors is an integer number (6337500390).

Almost surely, 2^121402527375 is an apocalyptic number.

121402527375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121402527375 is a deficient number, since it is larger than the sum of its proper divisors (81397485105).

121402527375 is a wasteful number, since it uses less digits than its factorization.

121402527375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259964 (or 1259954 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 39.

The spelling of 121402527375 in words is "one hundred twenty-one billion, four hundred two million, five hundred twenty-seven thousand, three hundred seventy-five".