21430001050 has 24 divisors (see below), whose sum is σ = 39867537600. Its totient is φ = 8570336880.

The previous prime is 21430001011. The next prime is 21430001101. The reversal of 21430001050 is 5010003412.

It is a super-2 number, since 2×21430001050² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 237121 + ... + 314779.

It is an arithmetic number, because the mean of its divisors is an integer number (1661147400).

Almost surely, 2^21430001050 is an apocalyptic number.

21430001050 is a deficient number, since it is larger than the sum of its proper divisors (18437536550).

21430001050 is a wasteful number, since it uses less digits than its factorization.

21430001050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83190 (or 83185 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

Adding to 21430001050 its reverse (5010003412), we get a palindrome (26440004462).

The spelling of 21430001050 in words is "twenty-one billion, four hundred thirty million, one thousand, fifty".