100121191967 has 4 divisors (see below), whose sum is σ = 100404821760. Its totient is φ = 99837562176.

The previous prime is 100121191903. The next prime is 100121191993. The reversal of 100121191967 is 769191121001.

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

It is a cyclic number.

It is not a de Polignac number, because 100121191967 - 2⁶ = 100121191903 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100121191967.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100121194967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141814367 + ... + 141815072.

It is an arithmetic number, because the mean of its divisors is an integer number (25101205440).

Almost surely, 2^100121191967 is an apocalyptic number.

100121191967 is a deficient number, since it is larger than the sum of its proper divisors (283629793).

100121191967 is an equidigital number, since it uses as much as digits as its factorization.

100121191967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283629792.

The product of its (nonzero) digits is 6804, while the sum is 38.

The spelling of 100121191967 in words is "one hundred billion, one hundred twenty-one million, one hundred ninety-one thousand, nine hundred sixty-seven".