21434503101 has 8 divisors (see below), whose sum is σ = 31177459104. Its totient is φ = 12990607920.

The previous prime is 21434503087. The next prime is 21434503121. The reversal of 21434503101 is 10130543412.

It is a happy number.

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

It is not a de Polignac number, because 21434503101 - 2⁹ = 21434502589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21434503121) 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, 324765166 + ... + 324765231.

It is an arithmetic number, because the mean of its divisors is an integer number (3897182388).

Almost surely, 2^21434503101 is an apocalyptic number.

It is an amenable number.

21434503101 is a deficient number, since it is larger than the sum of its proper divisors (9742956003).

21434503101 is a wasteful number, since it uses less digits than its factorization.

21434503101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649530411.

The product of its (nonzero) digits is 1440, while the sum is 24.

The spelling of 21434503101 in words is "twenty-one billion, four hundred thirty-four million, five hundred three thousand, one hundred one".