101025154242 has 48 divisors (see below), whose sum is σ = 219510595512. Its totient is φ = 33579375360.

The previous prime is 101025154229. The next prime is 101025154267. The reversal of 101025154242 is 242451520101.

It is a happy number.

101025154242 is a `hidden beast` number, since 1 + 0 + 102 + 515 + 4 + 2 + 42 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 45206839161 + 55818315081 = 212619^2 + 236259^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10632838 + ... + 10642334.

Almost surely, 2^101025154242 is an apocalyptic number.

101025154242 is an abundant number, since it is smaller than the sum of its proper divisors (118485441270).

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

101025154242 is a wasteful number, since it uses less digits than its factorization.

101025154242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11123 (or 11120 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 101025154242 its reverse (242451520101), we get a palindrome (343476674343).

The spelling of 101025154242 in words is "one hundred one billion, twenty-five million, one hundred fifty-four thousand, two hundred forty-two".