1205155133430 has 32 divisors (see below), whose sum is σ = 2900126696544. Its totient is φ = 320513104896.

The previous prime is 1205155133411. The next prime is 1205155133437. The reversal of 1205155133430 is 343315515021.

It is a super-2 number, since 2×1205155133430² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1205155133391 and 1205155133400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205155133437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53838459 + ... + 53860838.

It is an arithmetic number, because the mean of its divisors is an integer number (90628959267).

Almost surely, 2^{1205155133430} is an apocalyptic number.

1205155133430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1205155133430 is an abundant number, since it is smaller than the sum of its proper divisors (1694971563114).

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

1205155133430 is a wasteful number, since it uses less digits than its factorization.

1205155133430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107699680.

The product of its (nonzero) digits is 27000, while the sum is 33.

The spelling of 1205155133430 in words is "one trillion, two hundred five billion, one hundred fifty-five million, one hundred thirty-three thousand, four hundred thirty".