1312242030 has 96 divisors (see below), whose sum is σ = 3917946240. Its totient is φ = 301371840.

The previous prime is 1312242017. The next prime is 1312242073. The reversal of 1312242030 is 302422131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1312241994 and 1312242012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16072 + ... + 53691.

It is an arithmetic number, because the mean of its divisors is an integer number (40811940).

Almost surely, 2^1312242030 is an apocalyptic number.

1312242030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312242030 is an abundant number, since it is smaller than the sum of its proper divisors (2605704210).

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

1312242030 is a wasteful number, since it uses less digits than its factorization.

1312242030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69806 (or 69803 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1312242030 is about 36224.8813662654. The cubic root of 1312242030 is about 1094.8080479193.

Adding to 1312242030 its reverse (302422131), we get a palindrome (1614664161).

It can be divided in two parts, 1312 and 242030, that added together give a palindrome (243342).

The spelling of 1312242030 in words is "one billion, three hundred twelve million, two hundred forty-two thousand, thirty".