3142102021 has 4 divisors (see below), whose sum is σ = 3173212044. Its totient is φ = 3110992000.

The previous prime is 3142102001. The next prime is 3142102031. The reversal of 3142102021 is 1202012413.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2890245121 + 251856900 = 53761^2 + 15870^2 .

It is a cyclic number.

It is not a de Polignac number, because 3142102021 - 2⁹ = 3142101509 is a prime.

It is a super-2 number, since 2×3142102021² = 19745610220744568882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3142101986 and 3142102004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3142102001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15554860 + ... + 15555061.

It is an arithmetic number, because the mean of its divisors is an integer number (793303011).

Almost surely, 2^3142102021 is an apocalyptic number.

It is an amenable number.

3142102021 is a deficient number, since it is larger than the sum of its proper divisors (31110023).

3142102021 is a wasteful number, since it uses less digits than its factorization.

3142102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31110022.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 3142102021 is about 56054.4558532147. The cubic root of 3142102021 is about 1464.6710379738.

Adding to 3142102021 its reverse (1202012413), we get a palindrome (4344114434).

The spelling of 3142102021 in words is "three billion, one hundred forty-two million, one hundred two thousand, twenty-one".