1146240373431 has 4 divisors (see below), whose sum is σ = 1528320497912. Its totient is φ = 764160248952.

The previous prime is 1146240373429. The next prime is 1146240373463. The reversal of 1146240373431 is 1343730426411.

It is a happy number.

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

It is not a de Polignac number, because 1146240373431 - 2¹ = 1146240373429 is a prime.

It is a super-2 number, since 2×1146240373431² (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 1146240373431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146240373231) 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, 191040062236 + ... + 191040062241.

It is an arithmetic number, because the mean of its divisors is an integer number (382080124478).

Almost surely, 2^{1146240373431} is an apocalyptic number.

1146240373431 is a deficient number, since it is larger than the sum of its proper divisors (382080124481).

1146240373431 is an equidigital number, since it uses as much as digits as its factorization.

1146240373431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382080124480.

The product of its (nonzero) digits is 145152, while the sum is 39.

Adding to 1146240373431 its reverse (1343730426411), we get a palindrome (2489970799842).

The spelling of 1146240373431 in words is "one trillion, one hundred forty-six billion, two hundred forty million, three hundred seventy-three thousand, four hundred thirty-one".