10212540542 has 4 divisors (see below), whose sum is σ = 15318810816. Its totient is φ = 5106270270.

The previous prime is 10212540469. The next prime is 10212540571. The reversal of 10212540542 is 24504521201.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2553135134 + ... + 2553135137.

It is an arithmetic number, because the mean of its divisors is an integer number (3829702704).

Almost surely, 2^10212540542 is an apocalyptic number.

10212540542 is a deficient number, since it is larger than the sum of its proper divisors (5106270274).

10212540542 is an equidigital number, since it uses as much as digits as its factorization.

10212540542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5106270273.

The product of its (nonzero) digits is 3200, while the sum is 26.

The spelling of 10212540542 in words is "ten billion, two hundred twelve million, five hundred forty thousand, five hundred forty-two".