1340100312 has 32 divisors (see below), whose sum is σ = 3367802880. Its totient is φ = 444359840.

The previous prime is 1340100287. The next prime is 1340100337. The reversal of 1340100312 is 2130010431.

It is an interprime number because it is at equal distance from previous prime (1340100287) and next prime (1340100337).

It is a junction number, because it is equal to n+sod(n) for n = 1340100291 and 1340100300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141588 + ... + 150755.

It is an arithmetic number, because the mean of its divisors is an integer number (105243840).

Almost surely, 2^1340100312 is an apocalyptic number.

1340100312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1340100312 is an abundant number, since it is smaller than the sum of its proper divisors (2027702568).

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

1340100312 is a wasteful number, since it uses less digits than its factorization.

1340100312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292543 (or 292539 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1340100312 is about 36607.3805673118. The cubic root of 1340100312 is about 1102.5012810491.

Adding to 1340100312 its reverse (2130010431), we get a palindrome (3470110743).

The spelling of 1340100312 in words is "one billion, three hundred forty million, one hundred thousand, three hundred twelve".