1023455035340 has 48 divisors (see below), whose sum is σ = 2152007445504. Its totient is φ = 408858105600.

The previous prime is 1023455035321. The next prime is 1023455035349. The reversal of 1023455035340 is 435305543201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1023455035340.

It is not an unprimeable number, because it can be changed into a prime (1023455035349) 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, 101216885 + ... + 101226995.

It is an arithmetic number, because the mean of its divisors is an integer number (44833488448).

Almost surely, 2^{1023455035340} is an apocalyptic number.

1023455035340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1023455035340 is an abundant number, since it is smaller than the sum of its proper divisors (1128552410164).

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

1023455035340 is a wasteful number, since it uses less digits than its factorization.

1023455035340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16098 (or 16096 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 35.

The spelling of 1023455035340 in words is "one trillion, twenty-three billion, four hundred fifty-five million, thirty-five thousand, three hundred forty".