1131101405 has 16 divisors (see below), whose sum is σ = 1552898304. Its totient is φ = 774775680.

The previous prime is 1131101353. The next prime is 1131101431. The reversal of 1131101405 is 5041011311.

It is not a de Polignac number, because 1131101405 - 2¹⁸ = 1130839261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16400 + ... + 50310.

It is an arithmetic number, because the mean of its divisors is an integer number (97056144).

Almost surely, 2^1131101405 is an apocalyptic number.

It is an amenable number.

1131101405 is a deficient number, since it is larger than the sum of its proper divisors (421796899).

1131101405 is an equidigital number, since it uses as much as digits as its factorization.

1131101405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34876.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 1131101405 is about 33631.8510492658. The cubic root of 1131101405 is about 1041.9187350586.

Adding to 1131101405 its reverse (5041011311), we get a palindrome (6172112716).

The spelling of 1131101405 in words is "one billion, one hundred thirty-one million, one hundred one thousand, four hundred five".