34021113820 has 24 divisors (see below), whose sum is σ = 71656354224. Its totient is φ = 13568061696.

The previous prime is 34021113809. The next prime is 34021113821. The reversal of 34021113820 is 2831112043.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34021113821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2517082 + ... + 2530561.

It is an arithmetic number, because the mean of its divisors is an integer number (2985681426).

Almost surely, 2^34021113820 is an apocalyptic number.

It is an amenable number.

34021113820 is an abundant number, since it is smaller than the sum of its proper divisors (37635240404).

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

34021113820 is a wasteful number, since it uses less digits than its factorization.

34021113820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5047989 (or 5047987 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 34021113820 its reverse (2831112043), we get a palindrome (36852225863).

The spelling of 34021113820 in words is "thirty-four billion, twenty-one million, one hundred thirteen thousand, eight hundred twenty".