123072105310 has 64 divisors (see below), whose sum is σ = 277212616704. Its totient is φ = 38218521600.

The previous prime is 123072105293. The next prime is 123072105341. The reversal of 123072105310 is 13501270321.

It is a happy number.

It is a super-2 number, since 2×123072105310² (a number of 23 digits) contains 22 as substring.

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, 86227 + ... + 503566.

It is an arithmetic number, because the mean of its divisors is an integer number (4331447136).

Almost surely, 2^123072105310 is an apocalyptic number.

123072105310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123072105310 is an abundant number, since it is smaller than the sum of its proper divisors (154140511394).

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

123072105310 is a wasteful number, since it uses less digits than its factorization.

123072105310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590089.

The product of its (nonzero) digits is 1260, while the sum is 25.

Adding to 123072105310 its reverse (13501270321), we get a palindrome (136573375631).

The spelling of 123072105310 in words is "one hundred twenty-three billion, seventy-two million, one hundred five thousand, three hundred ten".