21403230141 has 8 divisors (see below), whose sum is σ = 28538427424. Its totient is φ = 14268426480.

The previous prime is 21403230137. The next prime is 21403230179. The reversal of 21403230141 is 14103230412.

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

It is not a de Polignac number, because 21403230141 - 2² = 21403230137 is a prime.

It is a super-2 number, since 2×21403230141² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21403230341) 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, 69306 + ... + 218196.

It is an arithmetic number, because the mean of its divisors is an integer number (3567303428).

Almost surely, 2^21403230141 is an apocalyptic number.

It is an amenable number.

21403230141 is a deficient number, since it is larger than the sum of its proper divisors (7135197283).

21403230141 is a wasteful number, since it uses less digits than its factorization.

21403230141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196811.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21403230141 its reverse (14103230412), we get a palindrome (35506460553).

The spelling of 21403230141 in words is "twenty-one billion, four hundred three million, two hundred thirty thousand, one hundred forty-one".