201423034461 has 32 divisors (see below), whose sum is σ = 295591661568. Its totient is φ = 120990781440.

The previous prime is 201423034453. The next prime is 201423034469. The reversal of 201423034461 is 164430324102.

It is an interprime number because it is at equal distance from previous prime (201423034453) and next prime (201423034469).

It is not a de Polignac number, because 201423034461 - 2³ = 201423034453 is a prime.

It is a super-2 number, since 2×201423034461² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201423034469) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1610205 + ... + 1730781.

It is an arithmetic number, because the mean of its divisors is an integer number (9237239424).

Almost surely, 2^201423034461 is an apocalyptic number.

It is an amenable number.

201423034461 is a deficient number, since it is larger than the sum of its proper divisors (94168627107).

201423034461 is a wasteful number, since it uses less digits than its factorization.

201423034461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121041.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 201423034461 its reverse (164430324102), we get a palindrome (365853358563).

The spelling of 201423034461 in words is "two hundred one billion, four hundred twenty-three million, thirty-four thousand, four hundred sixty-one".