1230520581234 has 160 divisors (see below), whose sum is σ = 3346171171200. Its totient is φ = 329940905472.

The previous prime is 1230520581209. The next prime is 1230520581253. The reversal of 1230520581234 is 4321850250321.

1230520581234 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 52 + 0 + 581 + 23 + 4 = 666.

It is a super-2 number, since 2×1230520581234² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 6597492 + ... + 6781440.

It is an arithmetic number, because the mean of its divisors is an integer number (20913569820).

Almost surely, 2^{1230520581234} is an apocalyptic number.

1230520581234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230520581234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1673085585600).

1230520581234 is an abundant number, since it is smaller than the sum of its proper divisors (2115650589966).

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

1230520581234 is a wasteful number, since it uses less digits than its factorization.

1230520581234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184334 (or 184325 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 1230520581234 in words is "one trillion, two hundred thirty billion, five hundred twenty million, five hundred eighty-one thousand, two hundred thirty-four".