1171231033 has 16 divisors (see below), whose sum is σ = 1416919680. Its totient is φ = 946745856.

The previous prime is 1171231013. The next prime is 1171231037. The reversal of 1171231033 is 3301321711.

It is a de Polignac number, because none of the positive numbers 2^k-1171231033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1171230995 and 1171231013.

It is not an unprimeable number, because it can be changed into a prime (1171231037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58360 + ... + 75817.

It is an arithmetic number, because the mean of its divisors is an integer number (88557480).

Almost surely, 2^1171231033 is an apocalyptic number.

It is an amenable number.

1171231033 is a deficient number, since it is larger than the sum of its proper divisors (245688647).

1171231033 is a wasteful number, since it uses less digits than its factorization.

1171231033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134256.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 1171231033 is about 34223.2528115023. The cubic root of 1171231033 is about 1054.0976788014.

Adding to 1171231033 its reverse (3301321711), we get a palindrome (4472552744).

The spelling of 1171231033 in words is "one billion, one hundred seventy-one million, two hundred thirty-one thousand, thirty-three".