1031233020157 has 2 divisors, whose sum is σ = 1031233020158. Its totient is φ = 1031233020156.

The previous prime is 1031233020023. The next prime is 1031233020221. The reversal of 1031233020157 is 7510203321301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 913542170436 + 117690849721 = 955794^2 + 343061^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031233020157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031233020457) 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, 515616510078 + 515616510079.

It is an arithmetic number, because the mean of its divisors is an integer number (515616510079).

Almost surely, 2^{1031233020157} is an apocalyptic number.

It is an amenable number.

1031233020157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031233020157 is an equidigital number, since it uses as much as digits as its factorization.

1031233020157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 28.

Adding to 1031233020157 its reverse (7510203321301), we get a palindrome (8541436341458).

The spelling of 1031233020157 in words is "one trillion, thirty-one billion, two hundred thirty-three million, twenty thousand, one hundred fifty-seven".