1310423420 has 12 divisors (see below), whose sum is σ = 2751889224. Its totient is φ = 524169360.

The previous prime is 1310423419. The next prime is 1310423423. The reversal of 1310423420 is 243240131.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 65521171 = 1310423420 / (1 + 3 + 1 + 0 + 4 + 2 + 3 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 1310423392 and 1310423401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310423423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32760566 + ... + 32760605.

It is an arithmetic number, because the mean of its divisors is an integer number (229324102).

Almost surely, 2^1310423420 is an apocalyptic number.

1310423420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310423420 is an abundant number, since it is smaller than the sum of its proper divisors (1441465804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1310423420 is a wasteful number, since it uses less digits than its factorization.

1310423420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65521180 (or 65521178 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1310423420 is about 36199.7709937508. The cubic root of 1310423420 is about 1094.3020565694.

Adding to 1310423420 its reverse (243240131), we get a palindrome (1553663551).

The spelling of 1310423420 in words is "one billion, three hundred ten million, four hundred twenty-three thousand, four hundred twenty".