30131232102101 has 4 divisors (see below), whose sum is σ = 32449019186892. Its totient is φ = 27813445017312.

The previous prime is 30131232102077. The next prime is 30131232102113. The reversal of 30131232102101 is 10120123213103.

It is a happy number.

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 18479939368900 + 11651292733201 = 4298830^2 + 3413399^2 .

It is a cyclic number.

It is not a de Polignac number, because 30131232102101 - 2²² = 30131227907797 is a prime.

It is a super-2 number, since 2×30131232102101² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30131232102701) 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, 1158893542376 + ... + 1158893542401.

It is an arithmetic number, because the mean of its divisors is an integer number (8112254796723).

Almost surely, 2^{30131232102101} is an apocalyptic number.

It is an amenable number.

30131232102101 is a deficient number, since it is larger than the sum of its proper divisors (2317787084791).

30131232102101 is a wasteful number, since it uses less digits than its factorization.

30131232102101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2317787084790.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 30131232102101 its reverse (10120123213103), we get a palindrome (40251355315204).

The spelling of 30131232102101 in words is "thirty trillion, one hundred thirty-one billion, two hundred thirty-two million, one hundred two thousand, one hundred one".