11312202142 has 4 divisors (see below), whose sum is σ = 16968303216. Its totient is φ = 5656101070.

The previous prime is 11312202137. The next prime is 11312202149. The reversal of 11312202142 is 24120221311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24120221311 = 115309 ⋅209179.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312202149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828050534 + ... + 2828050537.

It is an arithmetic number, because the mean of its divisors is an integer number (4242075804).

Almost surely, 2^11312202142 is an apocalyptic number.

11312202142 is a deficient number, since it is larger than the sum of its proper divisors (5656101074).

11312202142 is an equidigital number, since it uses as much as digits as its factorization.

11312202142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5656101073.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11312202142 its reverse (24120221311), we get a palindrome (35432423453).

The spelling of 11312202142 in words is "eleven billion, three hundred twelve million, two hundred two thousand, one hundred forty-two".