21410111402 has 8 divisors (see below), whose sum is σ = 32118887556. Its totient is φ = 10703815552.

The previous prime is 21410111369. The next prime is 21410111431. The reversal of 21410111402 is 20411101412.

It can be written as a sum of positive squares in 2 ways, for example, as 14648502961 + 6761608441 = 121031^2 + 82229^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 598343 + ... + 633114.

Almost surely, 2^21410111402 is an apocalyptic number.

21410111402 is a deficient number, since it is larger than the sum of its proper divisors (10708776154).

21410111402 is a wasteful number, since it uses less digits than its factorization.

21410111402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240152.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21410111402 its reverse (20411101412), we get a palindrome (41821212814).

The spelling of 21410111402 in words is "twenty-one billion, four hundred ten million, one hundred eleven thousand, four hundred two".