1230723550 has 24 divisors (see below), whose sum is σ = 2616167376. Its totient is φ = 421962240.

The previous prime is 1230723521. The next prime is 1230723577. The reversal of 1230723550 is 553270321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1757827 + ... + 1758526.

It is an arithmetic number, because the mean of its divisors is an integer number (109006974).

Almost surely, 2^1230723550 is an apocalyptic number.

1230723550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230723550 is an abundant number, since it is smaller than the sum of its proper divisors (1385443826).

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

1230723550 is a wasteful number, since it uses less digits than its factorization.

1230723550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3516372 (or 3516367 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 1230723550 is about 35081.6697151091. The cubic root of 1230723550 is about 1071.6513210100.

Adding to 1230723550 its reverse (553270321), we get a palindrome (1783993871).

The spelling of 1230723550 in words is "one billion, two hundred thirty million, seven hundred twenty-three thousand, five hundred fifty".