1421140013 has 4 divisors (see below), whose sum is σ = 1424348448. Its totient is φ = 1417931580.

The previous prime is 1421140001. The next prime is 1421140043. The reversal of 1421140013 is 3100411241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1421140013 - 2¹⁰ = 1421138989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1421139973 and 1421140000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421140043) 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, 1603553 + ... + 1604438.

It is an arithmetic number, because the mean of its divisors is an integer number (356087112).

Almost surely, 2^1421140013 is an apocalyptic number.

It is an amenable number.

1421140013 is a deficient number, since it is larger than the sum of its proper divisors (3208435).

1421140013 is an equidigital number, since it uses as much as digits as its factorization.

1421140013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208434.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1421140013 is about 37698.0107300107. The cubic root of 1421140013 is about 1124.2915738739.

Adding to 1421140013 its reverse (3100411241), we get a palindrome (4521551254).

The spelling of 1421140013 in words is "one billion, four hundred twenty-one million, one hundred forty thousand, thirteen".