1101001421 has 16 divisors (see below), whose sum is σ = 1246734720. Its totient is φ = 964666560.

The previous prime is 1101001411. The next prime is 1101001423. The reversal of 1101001421 is 1241001011.

It is not a de Polignac number, because 1101001421 - 2¹⁴ = 1100985037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101001423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25115 + ... + 53223.

It is an arithmetic number, because the mean of its divisors is an integer number (77920920).

Almost surely, 2^1101001421 is an apocalyptic number.

It is an amenable number.

1101001421 is a deficient number, since it is larger than the sum of its proper divisors (145733299).

1101001421 is a wasteful number, since it uses less digits than its factorization.

1101001421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28276.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1101001421 is about 33181.3414587174. The cubic root of 1101001421 is about 1032.5932771055.

Adding to 1101001421 its reverse (1241001011), we get a palindrome (2342002432).

The spelling of 1101001421 in words is "one billion, one hundred one million, one thousand, four hundred twenty-one".