1303242121511 has 8 divisors (see below), whose sum is σ = 1422341992848. Its totient is φ = 1184246136000.

The previous prime is 1303242121507. The next prime is 1303242121537. The reversal of 1303242121511 is 1151212423031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1303242121511 - 2² = 1303242121507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303242121501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25945220 + ... + 25995401.

It is an arithmetic number, because the mean of its divisors is an integer number (177792749106).

Almost surely, 2^{1303242121511} is an apocalyptic number.

1303242121511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1303242121511 is a deficient number, since it is larger than the sum of its proper divisors (119099871337).

1303242121511 is a wasteful number, since it uses less digits than its factorization.

1303242121511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51942913.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 1303242121511 its reverse (1151212423031), we get a palindrome (2454454544542).

The spelling of 1303242121511 in words is "one trillion, three hundred three billion, two hundred forty-two million, one hundred twenty-one thousand, five hundred eleven".