202231023023442 has 64 divisors (see below), whose sum is σ = 464668320743424. Its totient is φ = 57477052133760.

The previous prime is 202231023023369. The next prime is 202231023023489. The reversal of 202231023023442 is 244320320132202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1193532733 + ... + 1193702159.

It is an arithmetic number, because the mean of its divisors is an integer number (7260442511616).

Almost surely, 2^{202231023023442} is an apocalyptic number.

202231023023442 is an abundant number, since it is smaller than the sum of its proper divisors (262437297719982).

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

202231023023442 is a wasteful number, since it uses less digits than its factorization.

202231023023442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318423.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 202231023023442 its reverse (244320320132202), we get a palindrome (446551343155644).

The spelling of 202231023023442 in words is "two hundred two trillion, two hundred thirty-one billion, twenty-three million, twenty-three thousand, four hundred forty-two".