1230205551550 has 48 divisors (see below), whose sum is σ = 2377039681152. Its totient is φ = 473175331200.

The previous prime is 1230205551527. The next prime is 1230205551551. The reversal of 1230205551550 is 551555020321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230205551551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2284297 + ... + 2770996.

It is an arithmetic number, because the mean of its divisors is an integer number (49521660024).

Almost surely, 2^{1230205551550} is an apocalyptic number.

1230205551550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230205551550 is a deficient number, since it is larger than the sum of its proper divisors (1146834129602).

1230205551550 is a wasteful number, since it uses less digits than its factorization.

1230205551550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5055493 (or 5055488 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 34.

The spelling of 1230205551550 in words is "one trillion, two hundred thirty billion, two hundred five million, five hundred fifty-one thousand, five hundred fifty".