121403344666371 has 16 divisors (see below), whose sum is σ = 162109263906720. Its totient is φ = 80816541246720.

The previous prime is 121403344666333. The next prime is 121403344666391. The reversal of 121403344666371 is 173666443304121.

It is a happy number.

It is not a de Polignac number, because 121403344666371 - 2²² = 121403340472067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121403344666391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4471701 + ... + 16211193.

It is an arithmetic number, because the mean of its divisors is an integer number (10131828994170).

Almost surely, 2^{121403344666371} is an apocalyptic number.

121403344666371 is a deficient number, since it is larger than the sum of its proper divisors (40705919240349).

121403344666371 is a wasteful number, since it uses less digits than its factorization.

121403344666371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11744566.

The product of its (nonzero) digits is 5225472, while the sum is 51.

The spelling of 121403344666371 in words is "one hundred twenty-one trillion, four hundred three billion, three hundred forty-four million, six hundred sixty-six thousand, three hundred seventy-one".