101245155102 has 192 divisors, whose sum is σ = 276232320000. Its totient is φ = 26245207872.

The previous prime is 101245155097. The next prime is 101245155131. The reversal of 101245155102 is 201551542101.

It is a happy number.

101245155102 is a `hidden beast` number, since 10 + 124 + 5 + 15 + 510 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16329399 + ... + 16335597.

It is an arithmetic number, because the mean of its divisors is an integer number (1438710000).

Almost surely, 2^101245155102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101245155102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138116160000).

101245155102 is an abundant number, since it is smaller than the sum of its proper divisors (174987164898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101245155102 is a wasteful number, since it uses less digits than its factorization.

101245155102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6312 (or 6283 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

Adding to 101245155102 its reverse (201551542101), we get a palindrome (302796697203).

The spelling of 101245155102 in words is "one hundred one billion, two hundred forty-five million, one hundred fifty-five thousand, one hundred two".