1235421555441 has 16 divisors (see below), whose sum is σ = 1660410845184. Its totient is φ = 817024973184.

The previous prime is 1235421555427. The next prime is 1235421555443. The reversal of 1235421555441 is 1445551245321.

It is not a de Polignac number, because 1235421555441 - 2⁶ = 1235421555377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1235421555393 and 1235421555402.

It is not an unprimeable number, because it can be changed into a prime (1235421555443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2842495 + ... + 3248171.

It is an arithmetic number, because the mean of its divisors is an integer number (103775677824).

Almost surely, 2^{1235421555441} is an apocalyptic number.

It is an amenable number.

1235421555441 is a deficient number, since it is larger than the sum of its proper divisors (424989289743).

1235421555441 is a wasteful number, since it uses less digits than its factorization.

1235421555441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413800.

The product of its digits is 480000, while the sum is 42.

The spelling of 1235421555441 in words is "one trillion, two hundred thirty-five billion, four hundred twenty-one million, five hundred fifty-five thousand, four hundred forty-one".