1023513705548 has 6 divisors (see below), whose sum is σ = 1791148984716. Its totient is φ = 511756852772.

The previous prime is 1023513705541. The next prime is 1023513705551. The reversal of 1023513705548 is 8455073153201.

It is a junction number, because it is equal to n+sod(n) for n = 1023513705499 and 1023513705508.

It is not an unprimeable number, because it can be changed into a prime (1023513705541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127939213190 + ... + 127939213197.

It is an arithmetic number, because the mean of its divisors is an integer number (298524830786).

Almost surely, 2^{1023513705548} is an apocalyptic number.

It is an amenable number.

1023513705548 is a deficient number, since it is larger than the sum of its proper divisors (767635279168).

1023513705548 is a wasteful number, since it uses less digits than its factorization.

1023513705548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255878426391 (or 255878426389 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 44.

Adding to 1023513705548 its reverse (8455073153201), we get a palindrome (9478586858749).

The spelling of 1023513705548 in words is "one trillion, twenty-three billion, five hundred thirteen million, seven hundred five thousand, five hundred forty-eight".