100231402 has 4 divisors (see below), whose sum is σ = 150347106. Its totient is φ = 50115700.

The previous prime is 100231399. The next prime is 100231421. The reversal of 100231402 is 204132001.

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., 70408881 + 29822521 = 8391^2 + 5461^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25057849 + ... + 25057852.

Almost surely, 2^100231402 is an apocalyptic number.

100231402 is a deficient number, since it is larger than the sum of its proper divisors (50115704).

100231402 is an equidigital number, since it uses as much as digits as its factorization.

100231402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50115703.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 100231402 is about 10011.5634143724. The cubic root of 100231402 is about 464.5166318704.

Adding to 100231402 its reverse (204132001), we get a palindrome (304363403).

The spelling of 100231402 in words is "one hundred million, two hundred thirty-one thousand, four hundred two".