121940040094 has 4 divisors (see below), whose sum is σ = 182910060144. Its totient is φ = 60970020046.

The previous prime is 121940040077. The next prime is 121940040097. The reversal of 121940040094 is 490040049121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121940040097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30485010022 + ... + 30485010025.

It is an arithmetic number, because the mean of its divisors is an integer number (45727515036).

Almost surely, 2^121940040094 is an apocalyptic number.

121940040094 is a deficient number, since it is larger than the sum of its proper divisors (60970020050).

121940040094 is an equidigital number, since it uses as much as digits as its factorization.

121940040094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60970020049.

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 121940040094 in words is "one hundred twenty-one billion, nine hundred forty million, forty thousand, ninety-four".