102434231402 has 4 divisors (see below), whose sum is σ = 153651347106. Its totient is φ = 51217115700.

The previous prime is 102434231371. The next prime is 102434231413. The reversal of 102434231402 is 204132434201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 87834584161 + 14599647241 = 296369^2 + 120829^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25608557849 + ... + 25608557852.

Almost surely, 2^102434231402 is an apocalyptic number.

102434231402 is a deficient number, since it is larger than the sum of its proper divisors (51217115704).

102434231402 is an equidigital number, since it uses as much as digits as its factorization.

102434231402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51217115703.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 102434231402 its reverse (204132434201), we get a palindrome (306566665603).

The spelling of 102434231402 in words is "one hundred two billion, four hundred thirty-four million, two hundred thirty-one thousand, four hundred two".