21401004130 has 32 divisors (see below), whose sum is σ = 42439889088. Its totient is φ = 7705128000.

The previous prime is 21401004091. The next prime is 21401004139. The reversal of 21401004130 is 3140010412.

It is not an unprimeable number, because it can be changed into a prime (21401004139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 952032 + ... + 974251.

It is an arithmetic number, because the mean of its divisors is an integer number (1326246534).

Almost surely, 2^21401004130 is an apocalyptic number.

21401004130 is a deficient number, since it is larger than the sum of its proper divisors (21038884958).

21401004130 is a wasteful number, since it uses less digits than its factorization.

21401004130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926402.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21401004130 its reverse (3140010412), we get a palindrome (24541014542).

The spelling of 21401004130 in words is "twenty-one billion, four hundred one million, four thousand, one hundred thirty".