11231121242 has 16 divisors (see below), whose sum is σ = 18380829312. Its totient is φ = 5104324320.

The previous prime is 11231121227. The next prime is 11231121257. The reversal of 11231121242 is 24212113211.

It is an interprime number because it is at equal distance from previous prime (11231121227) and next prime (11231121257).

It is a super-2 number, since 2×11231121242² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139478 + ... + 204734.

It is an arithmetic number, because the mean of its divisors is an integer number (1148801832).

Almost surely, 2^11231121242 is an apocalyptic number.

11231121242 is a deficient number, since it is larger than the sum of its proper divisors (7149708070).

11231121242 is a wasteful number, since it uses less digits than its factorization.

11231121242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73093.

The product of its digits is 192, while the sum is 20.

Adding to 11231121242 its reverse (24212113211), we get a palindrome (35443234453).

The spelling of 11231121242 in words is "eleven billion, two hundred thirty-one million, one hundred twenty-one thousand, two hundred forty-two".