1101131031 has 32 divisors (see below), whose sum is σ = 1971260928. Its totient is φ = 528013440.

The previous prime is 1101131029. The next prime is 1101131041. The reversal of 1101131031 is 1301311011.

It is not a de Polignac number, because 1101131031 - 2¹ = 1101131029 is a prime.

It is a super-2 number, since 2×1101131031² = 2424979094862245922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1101130998 and 1101131016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101131041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180336 + ... + 186341.

It is an arithmetic number, because the mean of its divisors is an integer number (61601904).

Almost surely, 2^1101131031 is an apocalyptic number.

1101131031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1101131031 is a deficient number, since it is larger than the sum of its proper divisors (870129897).

1101131031 is a wasteful number, since it uses less digits than its factorization.

1101131031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366711.

The product of its (nonzero) digits is 9, while the sum is 12.

The square root of 1101131031 is about 33183.2944566991. The cubic root of 1101131031 is about 1032.6337945111.

Adding to 1101131031 its reverse (1301311011), we get a palindrome (2402442042).

The spelling of 1101131031 in words is "one billion, one hundred one million, one hundred thirty-one thousand, thirty-one".