34121100520 has 128 divisors (see below), whose sum is σ = 87870666240. Its totient is φ = 11812884480.

The previous prime is 34121100493. The next prime is 34121100527. The reversal of 34121100520 is 2500112143.

It is not an unprimeable number, because it can be changed into a prime (34121100527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2388519 + ... + 2402761.

It is an arithmetic number, because the mean of its divisors is an integer number (686489580).

Almost surely, 2^34121100520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34121100520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43935333120).

34121100520 is an abundant number, since it is smaller than the sum of its proper divisors (53749565720).

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

34121100520 is a wasteful number, since it uses less digits than its factorization.

34121100520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14555 (or 14551 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 34121100520 its reverse (2500112143), we get a palindrome (36621212663).

The spelling of 34121100520 in words is "thirty-four billion, one hundred twenty-one million, one hundred thousand, five hundred twenty".