20421154133314 has 64 divisors (see below), whose sum is σ = 33640291730304. Its totient is φ = 9220392000000.

The previous prime is 20421154133309. The next prime is 20421154133327. The reversal of 20421154133314 is 41333145112402.

It is a super-2 number, since 2×20421154133314² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20421154133314.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4842576534 + ... + 4842580750.

It is an arithmetic number, because the mean of its divisors is an integer number (525629558286).

Almost surely, 2^{20421154133314} is an apocalyptic number.

20421154133314 is a deficient number, since it is larger than the sum of its proper divisors (13219137596990).

20421154133314 is a wasteful number, since it uses less digits than its factorization.

20421154133314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6643.

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 20421154133314 its reverse (41333145112402), we get a palindrome (61754299245716).

The spelling of 20421154133314 in words is "twenty trillion, four hundred twenty-one billion, one hundred fifty-four million, one hundred thirty-three thousand, three hundred fourteen".