11005213142 has 32 divisors (see below), whose sum is σ = 20871074304. Its totient is φ = 4227350400.

The previous prime is 11005213139. The next prime is 11005213169. The reversal of 11005213142 is 24131250011.

It is a super-2 number, since 2×11005213142² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 492323 + ... + 514190.

It is an arithmetic number, because the mean of its divisors is an integer number (652221072).

Almost surely, 2^11005213142 is an apocalyptic number.

11005213142 is a deficient number, since it is larger than the sum of its proper divisors (9865861162).

11005213142 is a wasteful number, since it uses less digits than its factorization.

11005213142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006604.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 11005213142 its reverse (24131250011), we get a palindrome (35136463153).

The spelling of 11005213142 in words is "eleven billion, five million, two hundred thirteen thousand, one hundred forty-two".