11311231202 has 32 divisors (see below), whose sum is σ = 18113760000. Its totient is φ = 5282054928.

The previous prime is 11311231181. The next prime is 11311231213. The reversal of 11311231202 is 20213211311.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1570253 + ... + 1577439.

It is an arithmetic number, because the mean of its divisors is an integer number (566055000).

Almost surely, 2^11311231202 is an apocalyptic number.

11311231202 is a deficient number, since it is larger than the sum of its proper divisors (6802528798).

11311231202 is a wasteful number, since it uses less digits than its factorization.

11311231202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7790.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11311231202 its reverse (20213211311), we get a palindrome (31524442513).

The spelling of 11311231202 in words is "eleven billion, three hundred eleven million, two hundred thirty-one thousand, two hundred two".