1351303353440 has 48 divisors (see below), whose sum is σ = 3302538810480. Its totient is φ = 521882672640.

The previous prime is 1351303353419. The next prime is 1351303353461. The reversal of 1351303353440 is 443533031531.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1351303353419) and next prime (1351303353461).

It is a self number, because there is not a number n which added to its sum of digits gives 1351303353440.

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, 145609946 + ... + 145619225.

It is an arithmetic number, because the mean of its divisors is an integer number (68802891885).

Almost surely, 2^{1351303353440} is an apocalyptic number.

1351303353440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1351303353440 is an abundant number, since it is smaller than the sum of its proper divisors (1951235457040).

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

1351303353440 is a wasteful number, since it uses less digits than its factorization.

1351303353440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291229215 (or 291229207 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 35.

Adding to 1351303353440 its reverse (443533031531), we get a palindrome (1794836384971).

The spelling of 1351303353440 in words is "one trillion, three hundred fifty-one billion, three hundred three million, three hundred fifty-three thousand, four hundred forty".