2031129281287 has 2 divisors, whose sum is σ = 2031129281288. Its totient is φ = 2031129281286.

The previous prime is 2031129281263. The next prime is 2031129281309. The reversal of 2031129281287 is 7821829211302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2031129281287 - 2²³ = 2031120892679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2031129281087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015564640643 + 1015564640644.

It is an arithmetic number, because the mean of its divisors is an integer number (1015564640644).

Almost surely, 2^{2031129281287} is an apocalyptic number.

2031129281287 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031129281287 is an equidigital number, since it uses as much as digits as its factorization.

2031129281287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 46.

The spelling of 2031129281287 in words is "two trillion, thirty-one billion, one hundred twenty-nine million, two hundred eighty-one thousand, two hundred eighty-seven".