201302012861 has 4 divisors (see below), whose sum is σ = 203183340192. Its totient is φ = 199420685532.

The previous prime is 201302012833. The next prime is 201302012869. The reversal of 201302012861 is 168210203102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 168210203102 = 2 ⋅84105101551.

It is a cyclic number.

It is not a de Polignac number, because 201302012861 - 2²⁶ = 201234903997 is a prime.

It is a super-3 number, since 3×201302012861³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201302012861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201302012869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 940663505 + ... + 940663718.

It is an arithmetic number, because the mean of its divisors is an integer number (50795835048).

Almost surely, 2^201302012861 is an apocalyptic number.

It is an amenable number.

201302012861 is a deficient number, since it is larger than the sum of its proper divisors (1881327331).

201302012861 is a wasteful number, since it uses less digits than its factorization.

201302012861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881327330.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 201302012861 its reverse (168210203102), we get a palindrome (369512215963).

The spelling of 201302012861 in words is "two hundred one billion, three hundred two million, twelve thousand, eight hundred sixty-one".