1101023131 has 8 divisors (see below), whose sum is σ = 1205814960. Its totient is φ = 999102432.

The previous prime is 1101023123. The next prime is 1101023149. The reversal of 1101023131 is 1313201011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1101023131 - 2³ = 1101023123 is a prime.

It is a super-2 number, since 2×1101023131² = 2424503869994086322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1101023101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 716980 + ... + 718513.

It is an arithmetic number, because the mean of its divisors is an integer number (150726870).

Almost surely, 2^1101023131 is an apocalyptic number.

1101023131 is a deficient number, since it is larger than the sum of its proper divisors (104791829).

1101023131 is a wasteful number, since it uses less digits than its factorization.

1101023131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435565.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1101023131 is about 33181.6685987911. The cubic root of 1101023131 is about 1032.6000640943.

Adding to 1101023131 its reverse (1313201011), we get a palindrome (2414224142).

The spelling of 1101023131 in words is "one billion, one hundred one million, twenty-three thousand, one hundred thirty-one".