1421723101403 has 4 divisors (see below), whose sum is σ = 1550970656088. Its totient is φ = 1292475546720.

The previous prime is 1421723101397. The next prime is 1421723101417. The reversal of 1421723101403 is 3041013271241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1421723101403 - 2¹⁶ = 1421723035867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421723106403) 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, 64623777326 + ... + 64623777347.

It is an arithmetic number, because the mean of its divisors is an integer number (387742664022).

Almost surely, 2^{1421723101403} is an apocalyptic number.

1421723101403 is a deficient number, since it is larger than the sum of its proper divisors (129247554685).

1421723101403 is a wasteful number, since it uses less digits than its factorization.

1421723101403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129247554684.

The product of its (nonzero) digits is 4032, while the sum is 29.

Adding to 1421723101403 its reverse (3041013271241), we get a palindrome (4462736372644).

The spelling of 1421723101403 in words is "one trillion, four hundred twenty-one billion, seven hundred twenty-three million, one hundred one thousand, four hundred three".