1223150634405 has 96 divisors (see below), whose sum is σ = 2473398720000. Its totient is φ = 558940531968.

The previous prime is 1223150634403. The next prime is 1223150634427. The reversal of 1223150634405 is 5044360513221.

1223150634405 is a `hidden beast` number, since 1 + 2 + 2 + 3 + 15 + 0 + 634 + 4 + 0 + 5 = 666.

It is not a de Polignac number, because 1223150634405 - 2¹ = 1223150634403 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1223150634405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223150634403) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 44547121 + ... + 44574569.

It is an arithmetic number, because the mean of its divisors is an integer number (25764570000).

Almost surely, 2^{1223150634405} is an apocalyptic number.

1223150634405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1223150634405 is an abundant number, since it is smaller than the sum of its proper divisors (1250248085595).

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

1223150634405 is a wasteful number, since it uses less digits than its factorization.

1223150634405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30368 (or 30351 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 1223150634405 in words is "one trillion, two hundred twenty-three billion, one hundred fifty million, six hundred thirty-four thousand, four hundred five".