201301542542 has 4 divisors (see below), whose sum is σ = 301952313816. Its totient is φ = 100650771270.

The previous prime is 201301542523. The next prime is 201301542577. The reversal of 201301542542 is 245245103102.

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

It is a super-2 number, since 2×201301542542² (a number of 23 digits) contains 22 as substring.

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, 50325385634 + ... + 50325385637.

It is an arithmetic number, because the mean of its divisors is an integer number (75488078454).

Almost surely, 2^201301542542 is an apocalyptic number.

201301542542 is a deficient number, since it is larger than the sum of its proper divisors (100650771274).

201301542542 is a wasteful number, since it uses less digits than its factorization.

201301542542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100650771273.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 201301542542 its reverse (245245103102), we get a palindrome (446546645644).

The spelling of 201301542542 in words is "two hundred one billion, three hundred one million, five hundred forty-two thousand, five hundred forty-two".