20110013437 has 2 divisors, whose sum is σ = 20110013438. Its totient is φ = 20110013436.

The previous prime is 20110013401. The next prime is 20110013479. The reversal of 20110013437 is 73431001102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13189603716 + 6920409721 = 114846^2 + 83189^2 .

It is a cyclic number.

It is not a de Polignac number, because 20110013437 - 2¹⁵ = 20109980669 is a prime.

It is a super-3 number, since 3×20110013437³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20110313437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055006718 + 10055006719.

It is an arithmetic number, because the mean of its divisors is an integer number (10055006719).

Almost surely, 2^20110013437 is an apocalyptic number.

It is an amenable number.

20110013437 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110013437 is an equidigital number, since it uses as much as digits as its factorization.

20110013437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

Adding to 20110013437 its reverse (73431001102), we get a palindrome (93541014539).

The spelling of 20110013437 in words is "twenty billion, one hundred ten million, thirteen thousand, four hundred thirty-seven".