2431900381 has 2 divisors, whose sum is σ = 2431900382. Its totient is φ = 2431900380.

The previous prime is 2431900333. The next prime is 2431900397. The reversal of 2431900381 is 1830091342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1318343481 + 1113556900 = 36309^2 + 33370^2 .

It is a cyclic number.

It is not a de Polignac number, because 2431900381 - 2¹¹ = 2431898333 is a prime.

It is a super-2 number, since 2×2431900381² = 11828278926215890322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2431900781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1215950190 + 1215950191.

It is an arithmetic number, because the mean of its divisors is an integer number (1215950191).

Almost surely, 2^2431900381 is an apocalyptic number.

It is an amenable number.

2431900381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2431900381 is an equidigital number, since it uses as much as digits as its factorization.

2431900381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 2431900381 is about 49314.3019924241. The cubic root of 2431900381 is about 1344.7718008116.

The spelling of 2431900381 in words is "two billion, four hundred thirty-one million, nine hundred thousand, three hundred eighty-one".