1102135442 has 4 divisors (see below), whose sum is σ = 1653203166. Its totient is φ = 551067720.

The previous prime is 1102135429. The next prime is 1102135469. The reversal of 1102135442 is 2445312011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2445312011 = 17 ⋅143841883.

It can be written as a sum of positive squares in only one way, i.e., 976000081 + 126135361 = 31241^2 + 11231^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275533859 + ... + 275533862.

Almost surely, 2^1102135442 is an apocalyptic number.

1102135442 is a deficient number, since it is larger than the sum of its proper divisors (551067724).

1102135442 is an equidigital number, since it uses as much as digits as its factorization.

1102135442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551067723.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1102135442 is about 33198.4252939804. The cubic root of 1102135442 is about 1032.9476758782.

Adding to 1102135442 its reverse (2445312011), we get a palindrome (3547447453).

The spelling of 1102135442 in words is "one billion, one hundred two million, one hundred thirty-five thousand, four hundred forty-two".