1245310135421 has 24 divisors (see below), whose sum is σ = 1426957400064. Its totient is φ = 1084733100000.

The previous prime is 1245310135387. The next prime is 1245310135439.

1245310135421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1245310135421 - 2³⁰ = 1244236393597 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 (1245310135481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1264685 + ... + 2022386.

It is an arithmetic number, because the mean of its divisors is an integer number (59456558336).

Almost surely, 2^{1245310135421} is an apocalyptic number.

1245310135421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1245310135421 is a deficient number, since it is larger than the sum of its proper divisors (181647264643).

1245310135421 is a wasteful number, since it uses less digits than its factorization.

1245310135421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287225 (or 3287214 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 1245310135421 in words is "one trillion, two hundred forty-five billion, three hundred ten million, one hundred thirty-five thousand, four hundred twenty-one".