1102142044 has 12 divisors (see below), whose sum is σ = 2030261800. Its totient is φ = 522067248.

The previous prime is 1102142029. The next prime is 1102142053. The reversal of 1102142044 is 4402412011.

It is a super-3 number, since 3×1102142044³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7250859 + ... + 7251010.

Almost surely, 2^1102142044 is an apocalyptic number.

It is an amenable number.

1102142044 is a deficient number, since it is larger than the sum of its proper divisors (928119756).

1102142044 is a wasteful number, since it uses less digits than its factorization.

1102142044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14501892 (or 14501890 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1102142044 is about 33198.5247262585. The cubic root of 1102142044 is about 1032.9497383915.

Adding to 1102142044 its reverse (4402412011), we get a palindrome (5504554055).

The spelling of 1102142044 in words is "one billion, one hundred two million, one hundred forty-two thousand, forty-four".