1161213233430 has 96 divisors (see below), whose sum is σ = 3116306799360. Its totient is φ = 276102673920.

The previous prime is 1161213233429. The next prime is 1161213233437. The reversal of 1161213233430 is 343323121611.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161213233437) 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, 3359866 + ... + 3689325.

It is an arithmetic number, because the mean of its divisors is an integer number (32461529160).

Almost surely, 2^{1161213233430} is an apocalyptic number.

1161213233430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1161213233430 is an abundant number, since it is smaller than the sum of its proper divisors (1955093565930).

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

1161213233430 is a wasteful number, since it uses less digits than its factorization.

1161213233430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7049254 (or 7049237 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The spelling of 1161213233430 in words is "one trillion, one hundred sixty-one billion, two hundred thirteen million, two hundred thirty-three thousand, four hundred thirty".