1023515234436 has 12 divisors (see below), whose sum is σ = 2388202213712. Its totient is φ = 341171744808.

The previous prime is 1023515234431. The next prime is 1023515234437. The reversal of 1023515234436 is 6344325153201.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1023515234394 and 1023515234403.

It is not an unprimeable number, because it can be changed into a prime (1023515234431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42646468090 + ... + 42646468113.

Almost surely, 2^{1023515234436} is an apocalyptic number.

It is an amenable number.

1023515234436 is an abundant number, since it is smaller than the sum of its proper divisors (1364686979276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1023515234436 is a wasteful number, since it uses less digits than its factorization.

1023515234436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85292936210 (or 85292936208 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 1023515234436 in words is "one trillion, twenty-three billion, five hundred fifteen million, two hundred thirty-four thousand, four hundred thirty-six".