312201042542 has 16 divisors (see below), whose sum is σ = 494087490960. Its totient is φ = 147543161472.

The previous prime is 312201042521. The next prime is 312201042557. The reversal of 312201042542 is 245240102213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9470633 + ... + 9503540.

It is an arithmetic number, because the mean of its divisors is an integer number (30880468185).

Almost surely, 2^312201042542 is an apocalyptic number.

312201042542 is a deficient number, since it is larger than the sum of its proper divisors (181886448418).

312201042542 is a wasteful number, since it uses less digits than its factorization.

312201042542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18974627.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 312201042542 its reverse (245240102213), we get a palindrome (557441144755).

The spelling of 312201042542 in words is "three hundred twelve billion, two hundred one million, forty-two thousand, five hundred forty-two".