1197261119987 has 4 divisors (see below), whose sum is σ = 1199846997600. Its totient is φ = 1194675242376.

The previous prime is 1197261119959. The next prime is 1197261120049. The reversal of 1197261119987 is 7899111627911.

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 1197261119987 - 2¹⁴ = 1197261103603 is a prime.

It is a super-2 number, since 2×1197261119987² (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 (1197261110987) 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, 1292938112 + ... + 1292939037.

It is an arithmetic number, because the mean of its divisors is an integer number (299961749400).

Almost surely, 2^{1197261119987} is an apocalyptic number.

1197261119987 is a deficient number, since it is larger than the sum of its proper divisors (2585877613).

1197261119987 is an equidigital number, since it uses as much as digits as its factorization.

1197261119987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585877612.

The product of its digits is 3429216, while the sum is 62.

The spelling of 1197261119987 in words is "one trillion, one hundred ninety-seven billion, two hundred sixty-one million, one hundred nineteen thousand, nine hundred eighty-seven".