20401152140213 has 4 divisors (see below), whose sum is σ = 21970471535628. Its totient is φ = 18831832744800.

The previous prime is 20401152140153. The next prime is 20401152140263. The reversal of 20401152140213 is 31204125110402.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5955664418929 + 14445487721284 = 2440423^2 + 3800722^2 .

It is a cyclic number.

It is not a de Polignac number, because 20401152140213 - 2³² = 20396857172917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20401152140263) 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, 784659697688 + ... + 784659697713.

It is an arithmetic number, because the mean of its divisors is an integer number (5492617883907).

Almost surely, 2^{20401152140213} is an apocalyptic number.

It is an amenable number.

20401152140213 is a deficient number, since it is larger than the sum of its proper divisors (1569319395415).

20401152140213 is a wasteful number, since it uses less digits than its factorization.

20401152140213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569319395414.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 20401152140213 its reverse (31204125110402), we get a palindrome (51605277250615).

The spelling of 20401152140213 in words is "twenty trillion, four hundred one billion, one hundred fifty-two million, one hundred forty thousand, two hundred thirteen".