121310011 has 4 divisors (see below), whose sum is σ = 128445912. Its totient is φ = 114174112.

The previous prime is 121309997. The next prime is 121310069. The reversal of 121310011 is 110013121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110013121 = 7457 ⋅14753.

It is a cyclic number.

It is not a de Polignac number, because 121310011 - 2⁷ = 121309883 is a prime.

It is a super-2 number, since 2×121310011² = 29432237537640242, which contains 22 as substring.

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 121310011.

It is not an unprimeable number, because it can be changed into a prime (121310081) 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, 3567925 + ... + 3567958.

It is an arithmetic number, because the mean of its divisors is an integer number (32111478).

Almost surely, 2^121310011 is an apocalyptic number.

121310011 is a deficient number, since it is larger than the sum of its proper divisors (7135901).

121310011 is an equidigital number, since it uses as much as digits as its factorization.

121310011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7135900.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 121310011 is about 11014.0823948253. The cubic root of 121310011 is about 495.0307922211.

Adding to 121310011 its reverse (110013121), we get a palindrome (231323132).

The spelling of 121310011 in words is "one hundred twenty-one million, three hundred ten thousand, eleven".