34021020020 has 48 divisors (see below), whose sum is σ = 76954993920. Its totient is φ = 12559134336.

The previous prime is 34021020013. The next prime is 34021020023. The reversal of 34021020020 is 2002012043.

It is a junction number, because it is equal to n+sod(n) for n = 34021019977 and 34021020004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34021020023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1799939 + ... + 1818741.

It is an arithmetic number, because the mean of its divisors is an integer number (1603229040).

Almost surely, 2^34021020020 is an apocalyptic number.

It is an amenable number.

34021020020 is an abundant number, since it is smaller than the sum of its proper divisors (42933973900).

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

34021020020 is a wasteful number, since it uses less digits than its factorization.

34021020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25784 (or 25782 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 34021020020 its reverse (2002012043), we get a palindrome (36023032063).

The spelling of 34021020020 in words is "thirty-four billion, twenty-one million, twenty thousand, twenty".