11285311398 has 16 divisors (see below), whose sum is σ = 22577007360. Its totient is φ = 3760706376.

The previous prime is 11285311391. The next prime is 11285311409. The reversal of 11285311398 is 89311358211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11285311391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242890 + ... + 285597.

It is an arithmetic number, because the mean of its divisors is an integer number (1411062960).

Almost surely, 2^11285311398 is an apocalyptic number.

11285311398 is an abundant number, since it is smaller than the sum of its proper divisors (11291695962).

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

11285311398 is a wasteful number, since it uses less digits than its factorization.

11285311398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532051.

The product of its digits is 51840, while the sum is 42.

It can be divided in two parts, 112853 and 11398, that added together give a triangular number (124251 = T₄₉₈).

The spelling of 11285311398 in words is "eleven billion, two hundred eighty-five million, three hundred eleven thousand, three hundred ninety-eight".