1216273523230 has 16 divisors (see below), whose sum is σ = 2189306704464. Its totient is φ = 486506217600.

The previous prime is 1216273523219. The next prime is 1216273523281. The reversal of 1216273523230 is 323253726121.

It is a self number, because there is not a number n which added to its sum of digits gives 1216273523230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1755649 + ... + 2348371.

It is an arithmetic number, because the mean of its divisors is an integer number (136831669029).

Almost surely, 2^{1216273523230} is an apocalyptic number.

1216273523230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1216273523230 is a deficient number, since it is larger than the sum of its proper divisors (973033181234).

1216273523230 is a wasteful number, since it uses less digits than its factorization.

1216273523230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797931.

The product of its (nonzero) digits is 90720, while the sum is 37.

The spelling of 1216273523230 in words is "one trillion, two hundred sixteen billion, two hundred seventy-three million, five hundred twenty-three thousand, two hundred thirty".