20120302303631 has 8 divisors (see below), whose sum is σ = 20452098493824. Its totient is φ = 19788569183520.

The previous prime is 20120302303523. The next prime is 20120302303639. The reversal of 20120302303631 is 13630320302102.

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 a de Polignac number, because none of the positive numbers 2^k-20120302303631 is a prime.

It is a super-2 number, since 2×20120302303631² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20120302303631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120302303639) 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, 15124016 + ... + 16400501.

It is an arithmetic number, because the mean of its divisors is an integer number (2556512311728).

Almost surely, 2^{20120302303631} is an apocalyptic number.

20120302303631 is a deficient number, since it is larger than the sum of its proper divisors (331796190193).

20120302303631 is a wasteful number, since it uses less digits than its factorization.

20120302303631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31535041.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 20120302303631 its reverse (13630320302102), we get a palindrome (33750622605733).

The spelling of 20120302303631 in words is "twenty trillion, one hundred twenty billion, three hundred two million, three hundred three thousand, six hundred thirty-one".