1342255640987 has 4 divisors (see below), whose sum is σ = 1342996811016. Its totient is φ = 1341514470960.

The previous prime is 1342255640981. The next prime is 1342255640993. The reversal of 1342255640987 is 7890465522431.

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

It is an interprime number because it is at equal distance from previous prime (1342255640981) and next prime (1342255640993).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1342255640987 is a prime.

It is a super-2 number, since 2×1342255640987² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1342255640981) 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, 370582298 + ... + 370585919.

It is an arithmetic number, because the mean of its divisors is an integer number (335749202754).

It is a 1-persistent number, because it is pandigital, but 2⋅1342255640987 = 2684511281974 is not.

Almost surely, 2^{1342255640987} is an apocalyptic number.

1342255640987 is a deficient number, since it is larger than the sum of its proper divisors (741170029).

1342255640987 is an equidigital number, since it uses as much as digits as its factorization.

1342255640987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741170028.

The product of its (nonzero) digits is 14515200, while the sum is 56.

The spelling of 1342255640987 in words is "one trillion, three hundred forty-two billion, two hundred fifty-five million, six hundred forty thousand, nine hundred eighty-seven".