1243530450131 has 2 divisors, whose sum is σ = 1243530450132. Its totient is φ = 1243530450130.

The previous prime is 1243530450089. The next prime is 1243530450163. The reversal of 1243530450131 is 1310540353421.

It is an a-pointer prime, because the next prime (1243530450163) can be obtained adding 1243530450131 to its sum of digits (32).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1243530450131 - 2³⁴ = 1226350580947 is a prime.

It is a super-2 number, since 2×1243530450131² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1243530450181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621765225065 + 621765225066.

It is an arithmetic number, because the mean of its divisors is an integer number (621765225066).

Almost surely, 2^{1243530450131} is an apocalyptic number.

1243530450131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1243530450131 is an equidigital number, since it uses as much as digits as its factorization.

1243530450131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 1243530450131 in words is "one trillion, two hundred forty-three billion, five hundred thirty million, four hundred fifty thousand, one hundred thirty-one".