1250420331031 has 2 divisors, whose sum is σ = 1250420331032. Its totient is φ = 1250420331030.

The previous prime is 1250420331029. The next prime is 1250420331101. The reversal of 1250420331031 is 1301330240521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1250420331031 - 2¹ = 1250420331029 is a prime.

It is a super-2 number, since 2×1250420331031² (a number of 25 digits) contains 22 as substring.

Together with 1250420331029, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1250420330987 and 1250420331005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1250420337031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625210165515 + 625210165516.

It is an arithmetic number, because the mean of its divisors is an integer number (625210165516).

Almost surely, 2^{1250420331031} is an apocalyptic number.

1250420331031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250420331031 is an equidigital number, since it uses as much as digits as its factorization.

1250420331031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 1250420331031 its reverse (1301330240521), we get a palindrome (2551750571552).

The spelling of 1250420331031 in words is "one trillion, two hundred fifty billion, four hundred twenty million, three hundred thirty-one thousand, thirty-one".