823605392130 has 64 divisors (see below), whose sum is σ = 2010417770880. Its totient is φ = 215904989696.

The previous prime is 823605392101. The next prime is 823605392143. The reversal of 823605392130 is 31293506328.

It is a super-2 number, since 2×823605392130² (a number of 25 digits) contains 22 as substring.

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, 429612 + ... + 1353431.

It is an arithmetic number, because the mean of its divisors is an integer number (31412777670).

Almost surely, 2^823605392130 is an apocalyptic number.

823605392130 is an abundant number, since it is smaller than the sum of its proper divisors (1186812378750).

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

823605392130 is a wasteful number, since it uses less digits than its factorization.

823605392130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783315.

The product of its (nonzero) digits is 233280, while the sum is 42.

Adding to 823605392130 its reverse (31293506328), we get a palindrome (854898898458).

The spelling of 823605392130 in words is "eight hundred twenty-three billion, six hundred five million, three hundred ninety-two thousand, one hundred thirty".