20123123444310 has 64 divisors (see below), whose sum is σ = 48394946880000. Its totient is φ = 5355117376512.

The previous prime is 20123123444309. The next prime is 20123123444483. The reversal of 20123123444310 is 1344432132102.

It is a super-2 number, since 2×20123123444310² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 476728486 + ... + 476770694.

It is an arithmetic number, because the mean of its divisors is an integer number (756171045000).

Almost surely, 2^{20123123444310} is an apocalyptic number.

20123123444310 is an abundant number, since it is smaller than the sum of its proper divisors (28271823435690).

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

20123123444310 is a wasteful number, since it uses less digits than its factorization.

20123123444310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74565.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 20123123444310 its reverse (1344432132102), we get a palindrome (21467555576412).

The spelling of 20123123444310 in words is "twenty trillion, one hundred twenty-three billion, one hundred twenty-three million, four hundred forty-four thousand, three hundred ten".