101231220130 has 16 divisors (see below), whose sum is σ = 188094138624. Its totient is φ = 39186278640.

The previous prime is 101231220127. The next prime is 101231220137. The reversal of 101231220130 is 31022132101.

It is not an unprimeable number, because it can be changed into a prime (101231220137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163275852 + ... + 163276471.

It is an arithmetic number, because the mean of its divisors is an integer number (11755883664).

Almost surely, 2^101231220130 is an apocalyptic number.

101231220130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101231220130 is a deficient number, since it is larger than the sum of its proper divisors (86862918494).

101231220130 is a wasteful number, since it uses less digits than its factorization.

101231220130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326552361.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 101231220130 its reverse (31022132101), we get a palindrome (132253352231).

The spelling of 101231220130 in words is "one hundred one billion, two hundred thirty-one million, two hundred twenty thousand, one hundred thirty".