131101011 has 10 divisors (see below), whose sum is σ = 195842372. Its totient is φ = 87400620.

The previous prime is 131100997. The next prime is 131101021. The reversal of 131101011 is 110101131.

It is not a de Polignac number, because 131101011 - 2⁶ = 131100947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131100984 and 131101002.

It is not an unprimeable number, because it can be changed into a prime (131101021) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 809185 + ... + 809346.

Almost surely, 2^131101011 is an apocalyptic number.

131101011 is a deficient number, since it is larger than the sum of its proper divisors (64741361).

131101011 is an equidigital number, since it uses as much as digits as its factorization.

131101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618543 (or 1618534 counting only the distinct ones).

The product of its (nonzero) digits is 3, while the sum is 9.

The square root of 131101011 is about 11449.9349779813. The cubic root of 131101011 is about 508.0058111535.

Adding to 131101011 its reverse (110101131), we get a palindrome (241202142).

The spelling of 131101011 in words is "one hundred thirty-one million, one hundred one thousand, eleven".