1235342012520 has 1152 divisors, whose sum is σ = 4913273998080. Its totient is φ = 247377715200.

The previous prime is 1235342012507. The next prime is 1235342012537. The reversal of 1235342012520 is 252102435321.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 4396234780 + ... + 4396235060.

It is an arithmetic number, because the mean of its divisors is an integer number (4264994790).

Almost surely, 2^{1235342012520} is an apocalyptic number.

1235342012520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1235342012520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2456636999040).

1235342012520 is an abundant number, since it is smaller than the sum of its proper divisors (3677931985560).

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

1235342012520 is a wasteful number, since it uses less digits than its factorization.

1235342012520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 1235342012520 its reverse (252102435321), we get a palindrome (1487444447841).

The spelling of 1235342012520 in words is "one trillion, two hundred thirty-five billion, three hundred forty-two million, twelve thousand, five hundred twenty".