1131198162084 has 81 divisors (see below), whose sum is σ = 2889127188129. Its totient is φ = 373188248640.

The previous prime is 1131198162079. The next prime is 1131198162089. The reversal of 1131198162084 is 4802618911311.

The square root of 1131198162084 is 1063578.

It is a perfect power (a square), and thus also a powerful number.

1131198162084 is a `hidden beast` number, since 1 + 1 + 3 + 1 + 19 + 8 + 1 + 620 + 8 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (1131198162079) and next prime (1131198162089).

It can be written as a sum of positive squares in only one way, i.e., 835436216484 + 295761945600 = 914022^2 + 543840^2 .

It is not an unprimeable number, because it can be changed into a prime (1131198162089) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 657290344 + ... + 657292064.

Almost surely, 2^{1131198162084} is an apocalyptic number.

1131198162084 is the 1063578-th square number.

It is an amenable number.

1131198162084 is an abundant number, since it is smaller than the sum of its proper divisors (1757929026045).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131198162084 is an equidigital number, since it uses as much as digits as its factorization.

1131198162084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3658 (or 1829 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

It can be divided in two parts, 11311981 and 62084, that added together give a triangular number (11374065 = T₄₇₆₉).

The spelling of 1131198162084 in words is "one trillion, one hundred thirty-one billion, one hundred ninety-eight million, one hundred sixty-two thousand, eighty-four".