1145330120431 has 4 divisors (see below), whose sum is σ = 1308948709072. Its totient is φ = 981711531792.

The previous prime is 1145330120401. The next prime is 1145330120531. The reversal of 1145330120431 is 1340210335411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1145330120431 - 2⁵ = 1145330120399 is a prime.

It is a super-2 number, since 2×1145330120431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1145330120431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145330120401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81809294310 + ... + 81809294323.

It is an arithmetic number, because the mean of its divisors is an integer number (327237177268).

Almost surely, 2^{1145330120431} is an apocalyptic number.

1145330120431 is a deficient number, since it is larger than the sum of its proper divisors (163618588641).

1145330120431 is an equidigital number, since it uses as much as digits as its factorization.

1145330120431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163618588640.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 1145330120431 its reverse (1340210335411), we get a palindrome (2485540455842).

The spelling of 1145330120431 in words is "one trillion, one hundred forty-five billion, three hundred thirty million, one hundred twenty thousand, four hundred thirty-one".