1331342140123 has 4 divisors (see below), whose sum is σ = 1332373390168. Its totient is φ = 1330310890080.

The previous prime is 1331342140109. The next prime is 1331342140153. The reversal of 1331342140123 is 3210412431331.

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 1331342140123 - 2⁵ = 1331342140091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1331342140091 and 1331342140100.

It is not an unprimeable number, because it can be changed into a prime (1331342140103) 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, 515623086 + ... + 515625667.

It is an arithmetic number, because the mean of its divisors is an integer number (333093347542).

Almost surely, 2^{1331342140123} is an apocalyptic number.

1331342140123 is a deficient number, since it is larger than the sum of its proper divisors (1031250045).

1331342140123 is a wasteful number, since it uses less digits than its factorization.

1331342140123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031250044.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 1331342140123 its reverse (3210412431331), we get a palindrome (4541754571454).

The spelling of 1331342140123 in words is "one trillion, three hundred thirty-one billion, three hundred forty-two million, one hundred forty thousand, one hundred twenty-three".