213061501442 has 8 divisors (see below), whose sum is σ = 319599607500. Its totient is φ = 106528298944.

The previous prime is 213061501369. The next prime is 213061501459. The reversal of 213061501442 is 244105160312.

It can be written as a sum of positive squares in 2 ways, for example, as 156079514761 + 56981986681 = 395069^2 + 238709^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1115267 + ... + 1292262.

Almost surely, 2^213061501442 is an apocalyptic number.

213061501442 is a deficient number, since it is larger than the sum of its proper divisors (106538106058).

213061501442 is a wasteful number, since it uses less digits than its factorization.

213061501442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451780.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 213061501442 its reverse (244105160312), we get a palindrome (457166661754).

The spelling of 213061501442 in words is "two hundred thirteen billion, sixty-one million, five hundred one thousand, four hundred forty-two".