820202034023 has 8 divisors (see below), whose sum is σ = 855900266496. Its totient is φ = 784506907800.

The previous prime is 820202034013. The next prime is 820202034031. The reversal of 820202034023 is 320430202028.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-820202034023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 820202033983 and 820202034001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820202034013) 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, 228743 + ... + 1301048.

It is an arithmetic number, because the mean of its divisors is an integer number (106987533312).

Almost surely, 2^820202034023 is an apocalyptic number.

820202034023 is a deficient number, since it is larger than the sum of its proper divisors (35698232473).

820202034023 is a wasteful number, since it uses less digits than its factorization.

820202034023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553125.

The product of its (nonzero) digits is 4608, while the sum is 26.

The spelling of 820202034023 in words is "eight hundred twenty billion, two hundred two million, thirty-four thousand, twenty-three".