1023204131355 has 32 divisors (see below), whose sum is σ = 1981060775424. Its totient is φ = 440235726336.

The previous prime is 1023204131353. The next prime is 1023204131393. The reversal of 1023204131355 is 5531314023201.

1023204131355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1023204131355 - 2¹ = 1023204131353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1023204131353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 286610017 + ... + 286613586.

It is an arithmetic number, because the mean of its divisors is an integer number (61908149232).

Almost surely, 2^{1023204131355} is an apocalyptic number.

1023204131355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1023204131355 is a deficient number, since it is larger than the sum of its proper divisors (957856644069).

1023204131355 is a wasteful number, since it uses less digits than its factorization.

1023204131355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573223635.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 1023204131355 its reverse (5531314023201), we get a palindrome (6554518154556).

The spelling of 1023204131355 in words is "one trillion, twenty-three billion, two hundred four million, one hundred thirty-one thousand, three hundred fifty-five".