30210021032131 has 4 divisors (see below), whose sum is σ = 30211134054192. Its totient is φ = 30208908010072.

The previous prime is 30210021032129. The next prime is 30210021032137. The reversal of 30210021032131 is 13123012001203.

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

It is a cyclic number.

It is not a de Polignac number, because 30210021032131 - 2¹ = 30210021032129 is a prime.

It is a super-2 number, since 2×30210021032131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30210021032099 and 30210021032108.

It is not an unprimeable number, because it can be changed into a prime (30210021032137) 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, 556470316 + ... + 556524601.

It is an arithmetic number, because the mean of its divisors is an integer number (7552783513548).

Almost surely, 2^{30210021032131} is an apocalyptic number.

30210021032131 is a deficient number, since it is larger than the sum of its proper divisors (1113022061).

30210021032131 is a wasteful number, since it uses less digits than its factorization.

30210021032131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113022060.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 30210021032131 its reverse (13123012001203), we get a palindrome (43333033033334).

The spelling of 30210021032131 in words is "thirty trillion, two hundred ten billion, twenty-one million, thirty-two thousand, one hundred thirty-one".