21110023213130 has 32 divisors (see below), whose sum is σ = 38453865004800. Its totient is φ = 8343005898240.

The previous prime is 21110023213121. The next prime is 21110023213159. The reversal of 21110023213130 is 3131232001112.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17585006 + ... + 18747065.

It is an arithmetic number, because the mean of its divisors is an integer number (1201683281400).

Almost surely, 2^{21110023213130} is an apocalyptic number.

21110023213130 is a deficient number, since it is larger than the sum of its proper divisors (17343841791670).

21110023213130 is a wasteful number, since it uses less digits than its factorization.

21110023213130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36332774.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 21110023213130 its reverse (3131232001112), we get a palindrome (24241255214242).

The spelling of 21110023213130 in words is "twenty-one trillion, one hundred ten billion, twenty-three million, two hundred thirteen thousand, one hundred thirty".