121773011 has 4 divisors (see below), whose sum is σ = 121992192. Its totient is φ = 121553832.

The previous prime is 121772977. The next prime is 121773013. The reversal of 121773011 is 110377121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110377121 = 61 ⋅1809461.

It is a cyclic number.

It is not a de Polignac number, because 121773011 - 2¹⁸ = 121510867 is a prime.

It is a super-2 number, since 2×121773011² = 29657332416012242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121773013) 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, 108755 + ... + 109868.

It is an arithmetic number, because the mean of its divisors is an integer number (30498048).

Almost surely, 2^121773011 is an apocalyptic number.

121773011 is a deficient number, since it is larger than the sum of its proper divisors (219181).

121773011 is an equidigital number, since it uses as much as digits as its factorization.

121773011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219180.

The product of its (nonzero) digits is 294, while the sum is 23.

The square root of 121773011 is about 11035.0809240349. The cubic root of 121773011 is about 495.6597820277.

The spelling of 121773011 in words is "one hundred twenty-one million, seven hundred seventy-three thousand, eleven".