1331111741 has 12 divisors (see below), whose sum is σ = 1399691772. Its totient is φ = 1264951296.

The previous prime is 1331111701. The next prime is 1331111767. The reversal of 1331111741 is 1471111331.

It can be written as a sum of positive squares in 2 ways, for example, as 1139400025 + 191711716 = 33755^2 + 13846^2 .

It is not a de Polignac number, because 1331111741 - 2¹⁴ = 1331095357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331111701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58685 + ... + 78141.

It is an arithmetic number, because the mean of its divisors is an integer number (116640981).

Almost surely, 2^1331111741 is an apocalyptic number.

It is an amenable number.

1331111741 is a deficient number, since it is larger than the sum of its proper divisors (68580031).

1331111741 is an equidigital number, since it uses as much as digits as its factorization.

1331111741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19580 (or 19537 counting only the distinct ones).

The product of its digits is 252, while the sum is 23.

The square root of 1331111741 is about 36484.4040790034. The cubic root of 1331111741 is about 1100.0307817832.

It can be divided in two parts, 13311 and 11741, that added together give a palindrome (25052).

The spelling of 1331111741 in words is "one billion, three hundred thirty-one million, one hundred eleven thousand, seven hundred forty-one".