123333234133540 has 24 divisors (see below), whose sum is σ = 259004308876992. Its totient is φ = 49332433235040.

The previous prime is 123333234133537. The next prime is 123333234133541. The reversal of 123333234133540 is 45331432333321.

It is a happy number.

It is a super-2 number, since 2×123333234133540² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123333234133493 and 123333234133502.

It is not an unprimeable number, because it can be changed into a prime (123333234133541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52600126 + ... + 54894805.

It is an arithmetic number, because the mean of its divisors is an integer number (10791846203208).

Almost surely, 2^{123333234133540} is an apocalyptic number.

123333234133540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123333234133540 is an abundant number, since it is smaller than the sum of its proper divisors (135671074743452).

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

123333234133540 is a wasteful number, since it uses less digits than its factorization.

123333234133540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107552307 (or 107552305 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 40.

Adding to 123333234133540 its reverse (45331432333321), we get a palindrome (168664666466861).

The spelling of 123333234133540 in words is "one hundred twenty-three trillion, three hundred thirty-three billion, two hundred thirty-four million, one hundred thirty-three thousand, five hundred forty".