1340121310 has 32 divisors (see below), whose sum is σ = 2635742592. Its totient is φ = 486533280.

The previous prime is 1340121301. The next prime is 1340121317. The reversal of 1340121310 is 131210431.

It is a super-2 number, since 2×1340121310² = 3591850251032232200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340121317) 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, 61257 + ... + 80203.

It is an arithmetic number, because the mean of its divisors is an integer number (82366956).

Almost surely, 2^1340121310 is an apocalyptic number.

1340121310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1340121310 is a deficient number, since it is larger than the sum of its proper divisors (1295621282).

1340121310 is a wasteful number, since it uses less digits than its factorization.

1340121310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19608.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1340121310 is about 36607.6673662772. The cubic root of 1340121310 is about 1102.5070393745.

Adding to 1340121310 its reverse (131210431), we get a palindrome (1471331741).

It can be divided in two parts, 1340121 and 310, that added together give a palindrome (1340431).

The spelling of 1340121310 in words is "one billion, three hundred forty million, one hundred twenty-one thousand, three hundred ten".