1310120420 has 48 divisors (see below), whose sum is σ = 3229282560. Its totient is φ = 437042304.

The previous prime is 1310120417. The next prime is 1310120423. The reversal of 1310120420 is 240210131.

It is an interprime number because it is at equal distance from previous prime (1310120417) and next prime (1310120423).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1310120395 and 1310120404.

It is not an unprimeable number, because it can be changed into a prime (1310120423) 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, 121280 + ... + 131639.

It is an arithmetic number, because the mean of its divisors is an integer number (67276720).

Almost surely, 2^1310120420 is an apocalyptic number.

1310120420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310120420 is an abundant number, since it is smaller than the sum of its proper divisors (1919162140).

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

1310120420 is a wasteful number, since it uses less digits than its factorization.

1310120420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252972 (or 252970 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1310120420 is about 36195.5856424509. The cubic root of 1310120420 is about 1094.2177074760.

Adding to 1310120420 its reverse (240210131), we get a palindrome (1550330551).

The spelling of 1310120420 in words is "one billion, three hundred ten million, one hundred twenty thousand, four hundred twenty".