23120520354052 has 36 divisors (see below), whose sum is σ = 44730635692428. Its totient is φ = 10448579838400.

The previous prime is 23120520354049. The next prime is 23120520354053. The reversal of 23120520354052 is 25045302502132.

It can be written as a sum of positive squares in 2 ways, for example, as 22303857508416 + 816662845636 = 4722696^2 + 903694^2 .

It is a super-2 number, since 2×23120520354052² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23120520353999 and 23120520354017.

It is not an unprimeable number, because it can be changed into a prime (23120520354053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137978899 + ... + 138146362.

It is an arithmetic number, because the mean of its divisors is an integer number (1242517658123).

Almost surely, 2^{23120520354052} is an apocalyptic number.

23120520354052 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23120520354052 is a deficient number, since it is larger than the sum of its proper divisors (21610115338376).

23120520354052 is a wasteful number, since it uses less digits than its factorization.

23120520354052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276125460 (or 276125447 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 23120520354052 its reverse (25045302502132), we get a palindrome (48165822856184).

The spelling of 23120520354052 in words is "twenty-three trillion, one hundred twenty billion, five hundred twenty million, three hundred fifty-four thousand, fifty-two".