1233531511340 has 12 divisors (see below), whose sum is σ = 2590416173856. Its totient is φ = 493412604528.

The previous prime is 1233531511321. The next prime is 1233531511361. The reversal of 1233531511340 is 431151353321.

It is a junction number, because it is equal to n+sod(n) for n = 1233531511297 and 1233531511306.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30838287764 + ... + 30838287803.

It is an arithmetic number, because the mean of its divisors is an integer number (215868014488).

Almost surely, 2^{1233531511340} is an apocalyptic number.

1233531511340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1233531511340 is an abundant number, since it is smaller than the sum of its proper divisors (1356884662516).

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

1233531511340 is a wasteful number, since it uses less digits than its factorization.

1233531511340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61676575576 (or 61676575574 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

Adding to 1233531511340 its reverse (431151353321), we get a palindrome (1664682864661).

The spelling of 1233531511340 in words is "one trillion, two hundred thirty-three billion, five hundred thirty-one million, five hundred eleven thousand, three hundred forty".