2251215442031 has 2 divisors, whose sum is σ = 2251215442032. Its totient is φ = 2251215442030.

The previous prime is 2251215442009. The next prime is 2251215442051. The reversal of 2251215442031 is 1302445121522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2251215442031 - 2²⁶ = 2251148333167 is a prime.

It is a super-2 number, since 2×2251215442031² (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 (2251215442051) 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, 1125607721015 + 1125607721016.

It is an arithmetic number, because the mean of its divisors is an integer number (1125607721016).

Almost surely, 2^{2251215442031} is an apocalyptic number.

2251215442031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2251215442031 is an equidigital number, since it uses as much as digits as its factorization.

2251215442031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 2251215442031 in words is "two trillion, two hundred fifty-one billion, two hundred fifteen million, four hundred forty-two thousand, thirty-one".