21034100030340 has 96 divisors (see below), whose sum is σ = 59940128255616. Its totient is φ = 5510215296000.

The previous prime is 21034100030297. The next prime is 21034100030357. The reversal of 21034100030340 is 4303000143012.

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, 8466967 + ... + 10665726.

It is an arithmetic number, because the mean of its divisors is an integer number (624376335996).

Almost surely, 2^{21034100030340} is an apocalyptic number.

21034100030340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21034100030340 is an abundant number, since it is smaller than the sum of its proper divisors (38906028225276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21034100030340 is a wasteful number, since it uses less digits than its factorization.

21034100030340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19133029 (or 19133027 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21034100030340 its reverse (4303000143012), we get a palindrome (25337100173352).

The spelling of 21034100030340 in words is "twenty-one trillion, thirty-four billion, one hundred million, thirty thousand, three hundred forty".