1171831216270 has 256 divisors, whose sum is σ = 2545599135744. Its totient is φ = 382821120000.

The previous prime is 1171831216267. The next prime is 1171831216273. The reversal of 1171831216270 is 726121381711.

It is an interprime number because it is at equal distance from previous prime (1171831216267) and next prime (1171831216273).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171831216273) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2951715712 + ... + 2951716108.

It is an arithmetic number, because the mean of its divisors is an integer number (9943746624).

Almost surely, 2^{1171831216270} is an apocalyptic number.

1171831216270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1171831216270 is an abundant number, since it is smaller than the sum of its proper divisors (1373767919474).

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

1171831216270 is a wasteful number, since it uses less digits than its factorization.

1171831216270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827.

The product of its (nonzero) digits is 28224, while the sum is 40.

Adding to 1171831216270 its reverse (726121381711), we get a palindrome (1897952597981).

The spelling of 1171831216270 in words is "one trillion, one hundred seventy-one billion, eight hundred thirty-one million, two hundred sixteen thousand, two hundred seventy".