101919291092 has 12 divisors (see below), whose sum is σ = 180124688436. Its totient is φ = 50455094400.

The previous prime is 101919291079. The next prime is 101919291101. The reversal of 101919291092 is 290192919101.

It can be written as a sum of positive squares in 2 ways, for example, as 68577991876 + 33341299216 = 261874^2 + 182596^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126137333 + ... + 126138140.

It is an arithmetic number, because the mean of its divisors is an integer number (15010390703).

Almost surely, 2^101919291092 is an apocalyptic number.

It is an amenable number.

101919291092 is a deficient number, since it is larger than the sum of its proper divisors (78205397344).

101919291092 is a wasteful number, since it uses less digits than its factorization.

101919291092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252275578 (or 252275576 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 44.

The spelling of 101919291092 in words is "one hundred one billion, nine hundred nineteen million, two hundred ninety-one thousand, ninety-two".