1235412535420 has 48 divisors (see below), whose sum is σ = 2971593777600. Its totient is φ = 422626627584.

The previous prime is 1235412535411. The next prime is 1235412535447. The reversal of 1235412535420 is 245352145321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1235412535420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9763839 + ... + 9889558.

It is an arithmetic number, because the mean of its divisors is an integer number (61908203700).

Almost surely, 2^{1235412535420} is an apocalyptic number.

1235412535420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1235412535420 is an abundant number, since it is smaller than the sum of its proper divisors (1736181242180).

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

1235412535420 is a wasteful number, since it uses less digits than its factorization.

1235412535420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19653862 (or 19653860 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 1235412535420 in words is "one trillion, two hundred thirty-five billion, four hundred twelve million, five hundred thirty-five thousand, four hundred twenty".