102453231540 has 96 divisors (see below), whose sum is σ = 313026416640. Its totient is φ = 24830928000.

The previous prime is 102453231473. The next prime is 102453231541. The reversal of 102453231540 is 45132354201.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 102453231498 and 102453231507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102453231541) 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, 2965365 + ... + 2999715.

It is an arithmetic number, because the mean of its divisors is an integer number (3260691840).

Almost surely, 2^102453231540 is an apocalyptic number.

102453231540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102453231540 is an abundant number, since it is smaller than the sum of its proper divisors (210573185100).

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

102453231540 is a wasteful number, since it uses less digits than its factorization.

102453231540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38893 (or 38891 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 102453231540 its reverse (45132354201), we get a palindrome (147585585741).

The spelling of 102453231540 in words is "one hundred two billion, four hundred fifty-three million, two hundred thirty-one thousand, five hundred forty".