20101132031 has 2 divisors, whose sum is σ = 20101132032. Its totient is φ = 20101132030.

The previous prime is 20101132019. The next prime is 20101132057. The reversal of 20101132031 is 13023110102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20101132031 is a prime.

It is a super-2 number, since 2×20101132031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20101131997 and 20101132015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20101132091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050566015 + 10050566016.

It is an arithmetic number, because the mean of its divisors is an integer number (10050566016).

Almost surely, 2^20101132031 is an apocalyptic number.

20101132031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101132031 is an equidigital number, since it uses as much as digits as its factorization.

20101132031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20101132031 its reverse (13023110102), we get a palindrome (33124242133).

The spelling of 20101132031 in words is "twenty billion, one hundred one million, one hundred thirty-two thousand, thirty-one".