1311423130 has 32 divisors (see below), whose sum is σ = 2545421760. Its totient is φ = 484836480.

The previous prime is 1311423121. The next prime is 1311423133. The reversal of 1311423130 is 313241131.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 1311423098 and 1311423107.

It is not an unprimeable number, because it can be changed into a prime (1311423133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76384 + ... + 91963.

It is an arithmetic number, because the mean of its divisors is an integer number (79544430).

Almost surely, 2^1311423130 is an apocalyptic number.

1311423130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311423130 is a deficient number, since it is larger than the sum of its proper divisors (1233998630).

1311423130 is a wasteful number, since it uses less digits than its factorization.

1311423130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168414.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1311423130 is about 36213.5765977347. The cubic root of 1311423130 is about 1094.5802634993.

Adding to 1311423130 its reverse (313241131), we get a palindrome (1624664261).

The spelling of 1311423130 in words is "one billion, three hundred eleven million, four hundred twenty-three thousand, one hundred thirty".