1023204515402 has 16 divisors (see below), whose sum is σ = 1631130764040. Its totient is φ = 479718010368.

The previous prime is 1023204515393. The next prime is 1023204515513. The reversal of 1023204515402 is 2045154023201.

It can be written as a sum of positive squares in 4 ways, for example, as 855293882041 + 167910633361 = 924821^2 + 409769^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55928123 + ... + 55946414.

Almost surely, 2^{1023204515402} is an apocalyptic number.

1023204515402 is a deficient number, since it is larger than the sum of its proper divisors (607926248638).

1023204515402 is a wasteful number, since it uses less digits than its factorization.

1023204515402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111874825.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 1023204515402 its reverse (2045154023201), we get a palindrome (3068358538603).

The spelling of 1023204515402 in words is "one trillion, twenty-three billion, two hundred four million, five hundred fifteen thousand, four hundred two".