1102142121 has 8 divisors (see below), whose sum is σ = 1480249824. Its totient is φ = 729397920.

The previous prime is 1102142089. The next prime is 1102142131. The reversal of 1102142121 is 1212412011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1102142121 - 2⁵ = 1102142089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1102142121.

It is not an unprimeable number, because it can be changed into a prime (1102142131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1340395 + ... + 1341216.

It is an arithmetic number, because the mean of its divisors is an integer number (185031228).

Almost surely, 2^1102142121 is an apocalyptic number.

It is an amenable number.

1102142121 is a deficient number, since it is larger than the sum of its proper divisors (378107703).

1102142121 is a wasteful number, since it uses less digits than its factorization.

1102142121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681751.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1102142121 is about 33198.5258859486. The cubic root of 1102142121 is about 1032.9497624468.

Adding to 1102142121 its reverse (1212412011), we get a palindrome (2314554132).

The spelling of 1102142121 in words is "one billion, one hundred two million, one hundred forty-two thousand, one hundred twenty-one".