30102002031 has 8 divisors (see below), whose sum is σ = 41881046400. Its totient is φ = 19195479512.

The previous prime is 30102002027. The next prime is 30102002033. The reversal of 30102002031 is 13020020103.

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 30102002031 - 2² = 30102002027 is a prime.

It is a super-2 number, since 2×30102002031² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30102001998 and 30102002016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30102002033) 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, 218130381 + ... + 218130518.

It is an arithmetic number, because the mean of its divisors is an integer number (5235130800).

Almost surely, 2^30102002031 is an apocalyptic number.

30102002031 is a deficient number, since it is larger than the sum of its proper divisors (11779044369).

30102002031 is a wasteful number, since it uses less digits than its factorization.

30102002031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436260925.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 30102002031 its reverse (13020020103), we get a palindrome (43122022134).

The spelling of 30102002031 in words is "thirty billion, one hundred two million, two thousand, thirty-one".