2387237423381 has 2 divisors, whose sum is σ = 2387237423382. Its totient is φ = 2387237423380.

The previous prime is 2387237423321. The next prime is 2387237423411. The reversal of 2387237423381 is 1833247327832.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2376114346225 + 11123077156 = 1541465^2 + 105466^2 .

It is a cyclic number.

It is not a de Polignac number, because 2387237423381 - 2¹⁸ = 2387237161237 is a prime.

It is a super-2 number, since 2×2387237423381² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2387237423321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1193618711690 + 1193618711691.

It is an arithmetic number, because the mean of its divisors is an integer number (1193618711691).

Almost surely, 2^{2387237423381} is an apocalyptic number.

It is an amenable number.

2387237423381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2387237423381 is an equidigital number, since it uses as much as digits as its factorization.

2387237423381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8128512, while the sum is 53.

The spelling of 2387237423381 in words is "two trillion, three hundred eighty-seven billion, two hundred thirty-seven million, four hundred twenty-three thousand, three hundred eighty-one".