1023204515401 has 16 divisors (see below), whose sum is σ = 1071790720000. Its totient is φ = 975692433600.

The previous prime is 1023204515393. The next prime is 1023204515513. The reversal of 1023204515401 is 1045154023201.

It is a cyclic number.

It is not a de Polignac number, because 1023204515401 - 2³ = 1023204515393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1023204515401.

It is not an unprimeable number, because it can be changed into a prime (1023204510401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224901 + ... + 1448098.

It is an arithmetic number, because the mean of its divisors is an integer number (66986920000).

Almost surely, 2^{1023204515401} is an apocalyptic number.

It is an amenable number.

1023204515401 is a deficient number, since it is larger than the sum of its proper divisors (48586204599).

1023204515401 is a wasteful number, since it uses less digits than its factorization.

1023204515401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673320.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 1023204515401 its reverse (1045154023201), we get a palindrome (2068358538602).

The spelling of 1023204515401 in words is "one trillion, twenty-three billion, two hundred four million, five hundred fifteen thousand, four hundred one".