1211623304463 has 48 divisors (see below), whose sum is σ = 2126987684640. Its totient is φ = 654457708800.

The previous prime is 1211623304447. The next prime is 1211623304483. The reversal of 1211623304463 is 3644033261121.

1211623304463 is a `hidden beast` number, since 1 + 2 + 1 + 162 + 3 + 30 + 4 + 463 = 666.

It is not a de Polignac number, because 1211623304463 - 2⁴ = 1211623304447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211623304483) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16194268 + ... + 16268913.

It is an arithmetic number, because the mean of its divisors is an integer number (44312243430).

Almost surely, 2^{1211623304463} is an apocalyptic number.

1211623304463 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1211623304463 is a deficient number, since it is larger than the sum of its proper divisors (915364380177).

1211623304463 is a wasteful number, since it uses less digits than its factorization.

1211623304463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32463240 (or 32463237 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

Adding to 1211623304463 its reverse (3644033261121), we get a palindrome (4855656565584).

The spelling of 1211623304463 in words is "one trillion, two hundred eleven billion, six hundred twenty-three million, three hundred four thousand, four hundred sixty-three".