30123243200 has 42 divisors (see below), whose sum is σ = 74122009236. Its totient is φ = 12049296640.

The previous prime is 30123243197. The next prime is 30123243251. The reversal of 30123243200 is 234232103.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9411914 + ... + 9415113.

Almost surely, 2^30123243200 is an apocalyptic number.

It is an amenable number.

30123243200 is an abundant number, since it is smaller than the sum of its proper divisors (43998766036).

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

30123243200 is a wasteful number, since it uses less digits than its factorization.

30123243200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18827049 (or 18827034 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 30123243200 its reverse (234232103), we get a palindrome (30357475303).

The spelling of 30123243200 in words is "thirty billion, one hundred twenty-three million, two hundred forty-three thousand, two hundred".