1205412024135 has 128 divisors (see below), whose sum is σ = 2291819111424. Its totient is φ = 534295388160.

The previous prime is 1205412024119. The next prime is 1205412024149. The reversal of 1205412024135 is 5314202145021.

It is not a de Polignac number, because 1205412024135 - 2⁴ = 1205412024119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 63610732 + ... + 63629678.

It is an arithmetic number, because the mean of its divisors is an integer number (17904836808).

Almost surely, 2^{1205412024135} is an apocalyptic number.

1205412024135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1205412024135 is a deficient number, since it is larger than the sum of its proper divisors (1086407087289).

1205412024135 is a wasteful number, since it uses less digits than its factorization.

1205412024135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19633.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 1205412024135 its reverse (5314202145021), we get a palindrome (6519614169156).

The spelling of 1205412024135 in words is "one trillion, two hundred five billion, four hundred twelve million, twenty-four thousand, one hundred thirty-five".