10231535421513 has 36 divisors (see below), whose sum is σ = 17194742750640. Its totient is φ = 5845578517296.

The previous prime is 10231535421467. The next prime is 10231535421533. The reversal of 10231535421513 is 31512453513201.

It is a happy number.

10231535421513 is a `hidden beast` number, since 1 + 0 + 2 + 31 + 535 + 42 + 1 + 51 + 3 = 666.

It is not a de Polignac number, because 10231535421513 - 2⁶ = 10231535421449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10231535421533) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 541206 + ... + 4555872.

Almost surely, 2^{10231535421513} is an apocalyptic number.

It is an amenable number.

10231535421513 is a deficient number, since it is larger than the sum of its proper divisors (6963207329127).

10231535421513 is a wasteful number, since it uses less digits than its factorization.

10231535421513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4020466 (or 4020456 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

Adding to 10231535421513 its reverse (31512453513201), we get a palindrome (41743988934714).

The spelling of 10231535421513 in words is "ten trillion, two hundred thirty-one billion, five hundred thirty-five million, four hundred twenty-one thousand, five hundred thirteen".