102231254145 has 32 divisors (see below), whose sum is σ = 174294972288. Its totient is φ = 50989206528.

The previous prime is 102231254141. The next prime is 102231254173. The reversal of 102231254145 is 541452132201.

It is not a de Polignac number, because 102231254145 - 2² = 102231254141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102231254141) 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, 1236739 + ... + 1316808.

It is an arithmetic number, because the mean of its divisors is an integer number (5446717884).

Almost surely, 2^102231254145 is an apocalyptic number.

102231254145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102231254145 is a deficient number, since it is larger than the sum of its proper divisors (72063718143).

102231254145 is a wasteful number, since it uses less digits than its factorization.

102231254145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553729.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 102231254145 its reverse (541452132201), we get a palindrome (643683386346).

The spelling of 102231254145 in words is "one hundred two billion, two hundred thirty-one million, two hundred fifty-four thousand, one hundred forty-five".