1245404434511 has 8 divisors (see below), whose sum is σ = 1318673327184. Its totient is φ = 1172136631680.

The previous prime is 1245404434501. The next prime is 1245404434583. The reversal of 1245404434511 is 1154344045421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1245404434511 - 2²⁶ = 1245337325647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245404434501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3950141 + ... + 4253753.

It is an arithmetic number, because the mean of its divisors is an integer number (164834165898).

Almost surely, 2^{1245404434511} is an apocalyptic number.

1245404434511 is a deficient number, since it is larger than the sum of its proper divisors (73268892673).

1245404434511 is a wasteful number, since it uses less digits than its factorization.

1245404434511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544921.

The product of its (nonzero) digits is 153600, while the sum is 38.

Adding to 1245404434511 its reverse (1154344045421), we get a palindrome (2399748479932).

The spelling of 1245404434511 in words is "one trillion, two hundred forty-five billion, four hundred four million, four hundred thirty-four thousand, five hundred eleven".