123011023021010 has 16 divisors (see below), whose sum is σ = 221420680211736. Its totient is φ = 49204222814208.

The previous prime is 123011023020989. The next prime is 123011023021021. The reversal of 123011023021010 is 10120320110321.

It can be written as a sum of positive squares in 4 ways, for example, as 93946707997321 + 29064315023689 = 9692611^2 + 5391133^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 123011023021010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20511599 + ... + 25821458.

Almost surely, 2^{123011023021010} is an apocalyptic number.

123011023021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123011023021010 is a deficient number, since it is larger than the sum of its proper divisors (98409657190726).

123011023021010 is a wasteful number, since it uses less digits than its factorization.

123011023021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46598557.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 123011023021010 its reverse (10120320110321), we get a palindrome (133131343131331).

The spelling of 123011023021010 in words is "one hundred twenty-three trillion, eleven billion, twenty-three million, twenty-one thousand, ten".