1101201142 has 4 divisors (see below), whose sum is σ = 1651801716. Its totient is φ = 550600570.

The previous prime is 1101201109. The next prime is 1101201151. The reversal of 1101201142 is 2411021011.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275300284 + ... + 275300287.

It is an arithmetic number, because the mean of its divisors is an integer number (412950429).

Almost surely, 2^1101201142 is an apocalyptic number.

1101201142 is a deficient number, since it is larger than the sum of its proper divisors (550600574).

1101201142 is an equidigital number, since it uses as much as digits as its factorization.

1101201142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550600573.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1101201142 is about 33184.3508600063. The cubic root of 1101201142 is about 1032.6557105984.

Adding to 1101201142 its reverse (2411021011), we get a palindrome (3512222153).

The spelling of 1101201142 in words is "one billion, one hundred one million, two hundred one thousand, one hundred forty-two".