1161243031630 has 16 divisors (see below), whose sum is σ = 2280259044144. Its totient is φ = 422270193280.

The previous prime is 1161243031621. The next prime is 1161243031631. The reversal of 1161243031630 is 361303421611.

It is a junction number, because it is equal to n+sod(n) for n = 1161243031592 and 1161243031601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161243031631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5278377307 + ... + 5278377526.

It is an arithmetic number, because the mean of its divisors is an integer number (142516190259).

Almost surely, 2^{1161243031630} is an apocalyptic number.

1161243031630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1161243031630 is a deficient number, since it is larger than the sum of its proper divisors (1119016012514).

1161243031630 is a wasteful number, since it uses less digits than its factorization.

1161243031630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10556754851.

The product of its (nonzero) digits is 7776, while the sum is 31.

The spelling of 1161243031630 in words is "one trillion, one hundred sixty-one billion, two hundred forty-three million, thirty-one thousand, six hundred thirty".