2120321424131 has 2 divisors, whose sum is σ = 2120321424132. Its totient is φ = 2120321424130.

The previous prime is 2120321424121. The next prime is 2120321424191. The reversal of 2120321424131 is 1314241230212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120321424131 is a prime.

It is a super-2 number, since 2×2120321424131² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2120321424131.

It is not a weakly prime, because it can be changed into another prime (2120321424121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060160712065 + 1060160712066.

It is an arithmetic number, because the mean of its divisors is an integer number (1060160712066).

Almost surely, 2^{2120321424131} is an apocalyptic number.

2120321424131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120321424131 is an equidigital number, since it uses as much as digits as its factorization.

2120321424131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 2120321424131 its reverse (1314241230212), we get a palindrome (3434562654343).

It can be divided in two parts, 2120321 and 424131, that added together give a palindrome (2544452).

The spelling of 2120321424131 in words is "two trillion, one hundred twenty billion, three hundred twenty-one million, four hundred twenty-four thousand, one hundred thirty-one".