1421140023 has 6 divisors (see below), whose sum is σ = 2052757824. Its totient is φ = 947426676.

The previous prime is 1421140001. The next prime is 1421140043. The reversal of 1421140023 is 3200411241.

It is not a de Polignac number, because 1421140023 - 2⁶ = 1421139959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1421139978 and 1421140005.

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 5 ways as a sum of consecutive naturals, for example, 78952215 + ... + 78952232.

It is an arithmetic number, because the mean of its divisors is an integer number (342126304).

Almost surely, 2^1421140023 is an apocalyptic number.

1421140023 is a deficient number, since it is larger than the sum of its proper divisors (631617801).

1421140023 is a wasteful number, since it uses less digits than its factorization.

1421140023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157904453 (or 157904450 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1421140023 is about 37698.0108626437. The cubic root of 1421140023 is about 1124.2915765110.

Adding to 1421140023 its reverse (3200411241), we get a palindrome (4621551264).

The spelling of 1421140023 in words is "one billion, four hundred twenty-one million, one hundred forty thousand, twenty-three".