1377071131 has 2 divisors, whose sum is σ = 1377071132. Its totient is φ = 1377071130.

The previous prime is 1377071117. The next prime is 1377071153. The reversal of 1377071131 is 1311707731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1377071131 - 2¹⁵ = 1377038363 is a prime.

It is a super-2 number, since 2×1377071131² = 3792649799667238322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1377071093 and 1377071102.

It is not a weakly prime, because it can be changed into another prime (1377071191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688535565 + 688535566.

It is an arithmetic number, because the mean of its divisors is an integer number (688535566).

Almost surely, 2^1377071131 is an apocalyptic number.

1377071131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1377071131 is an equidigital number, since it uses as much as digits as its factorization.

1377071131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3087, while the sum is 31.

The square root of 1377071131 is about 37108.9090516011. The cubic root of 1377071131 is about 1112.5480869001.

Adding to 1377071131 its reverse (1311707731), we get a palindrome (2688778862).

The spelling of 1377071131 in words is "one billion, three hundred seventy-seven million, seventy-one thousand, one hundred thirty-one".