1232154120202 has 4 divisors (see below), whose sum is σ = 1848231180306. Its totient is φ = 616077060100.

The previous prime is 1232154120199. The next prime is 1232154120203. The reversal of 1232154120202 is 2020214512321.

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., 821015397801 + 411138722401 = 906099^2 + 641201^2 .

It is not an unprimeable number, because it can be changed into a prime (1232154120203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308038530049 + ... + 308038530052.

Almost surely, 2^{1232154120202} is an apocalyptic number.

1232154120202 is a deficient number, since it is larger than the sum of its proper divisors (616077060104).

1232154120202 is an equidigital number, since it uses as much as digits as its factorization.

1232154120202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616077060103.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 1232154120202 its reverse (2020214512321), we get a palindrome (3252368632523).

The spelling of 1232154120202 in words is "one trillion, two hundred thirty-two billion, one hundred fifty-four million, one hundred twenty thousand, two hundred two".