102142011 has 8 divisors (see below), whose sum is σ = 142110720. Its totient is φ = 65133992.

The previous prime is 102142003. The next prime is 102142013. The reversal of 102142011 is 110241201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 102142011 - 2³ = 102142003 is a prime.

It is a super-2 number, since 2×102142011² = 20865980822248242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102142013) 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, 740091 + ... + 740228.

It is an arithmetic number, because the mean of its divisors is an integer number (17763840).

Almost surely, 2^102142011 is an apocalyptic number.

102142011 is a deficient number, since it is larger than the sum of its proper divisors (39968709).

102142011 is a wasteful number, since it uses less digits than its factorization.

102142011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480345.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 102142011 is about 10106.5330850891. The cubic root of 102142011 is about 467.4496095611.

Adding to 102142011 its reverse (110241201), we get a palindrome (212383212).

The spelling of 102142011 in words is "one hundred two million, one hundred forty-two thousand, eleven".