1011332231 has 16 divisors (see below), whose sum is σ = 1247576064. Its totient is φ = 798336864.

The previous prime is 1011332191. The next prime is 1011332239. The reversal of 1011332231 is 1322331101.

It is not a de Polignac number, because 1011332231 - 2¹⁴ = 1011315847 is a prime.

It is a super-2 number, since 2×1011332231² = 2045585762918874722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011332239) 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, 27770 + ... + 52856.

It is an arithmetic number, because the mean of its divisors is an integer number (77973504).

Almost surely, 2^1011332231 is an apocalyptic number.

1011332231 is a deficient number, since it is larger than the sum of its proper divisors (236243833).

1011332231 is a wasteful number, since it uses less digits than its factorization.

1011332231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25550.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1011332231 is about 31801.4501398914. The cubic root of 1011332231 is about 1003.7632306635.

Adding to 1011332231 its reverse (1322331101), we get a palindrome (2333663332).

The spelling of 1011332231 in words is "one billion, eleven million, three hundred thirty-two thousand, two hundred thirty-one".