1121420011 has 8 divisors (see below), whose sum is σ = 1188166320. Its totient is φ = 1054760448.

The previous prime is 1121419991. The next prime is 1121420029. The reversal of 1121420011 is 1100241211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121420011 - 2⁵ = 1121419979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121419973 and 1121420000.

It is not an unprimeable number, because it can be changed into a prime (1121420051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5955 + ... + 47731.

It is an arithmetic number, because the mean of its divisors is an integer number (148520790).

Almost surely, 2^1121420011 is an apocalyptic number.

1121420011 is a deficient number, since it is larger than the sum of its proper divisors (66746309).

1121420011 is a wasteful number, since it uses less digits than its factorization.

1121420011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43373.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1121420011 is about 33487.6098131831. The cubic root of 1121420011 is about 1038.9375277971.

Adding to 1121420011 its reverse (1100241211), we get a palindrome (2221661222).

The spelling of 1121420011 in words is "one billion, one hundred twenty-one million, four hundred twenty thousand, eleven".