1351243260550 has 24 divisors (see below), whose sum is σ = 2532498068232. Its totient is φ = 536371368000.

The previous prime is 1351243260547. The next prime is 1351243260557. The reversal of 1351243260550 is 550623421531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1351243260557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103141791 + ... + 103154890.

It is an arithmetic number, because the mean of its divisors is an integer number (105520752843).

Almost surely, 2^{1351243260550} is an apocalyptic number.

1351243260550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1351243260550 is a deficient number, since it is larger than the sum of its proper divisors (1181254807682).

1351243260550 is a wasteful number, since it uses less digits than its factorization.

1351243260550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206296824 (or 206296819 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 1351243260550 in words is "one trillion, three hundred fifty-one billion, two hundred forty-three million, two hundred sixty thousand, five hundred fifty".