101891239190 has 32 divisors (see below), whose sum is σ = 197530250400. Its totient is φ = 37617951744.

The previous prime is 101891239187. The next prime is 101891239207. The reversal of 101891239190 is 91932198101.

It is a super-2 number, since 2×101891239190² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1730861 + ... + 1788759.

It is an arithmetic number, because the mean of its divisors is an integer number (6172820325).

Almost surely, 2^101891239190 is an apocalyptic number.

101891239190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101891239190 is a deficient number, since it is larger than the sum of its proper divisors (95639011210).

101891239190 is a wasteful number, since it uses less digits than its factorization.

101891239190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71456.

The product of its (nonzero) digits is 34992, while the sum is 44.

The spelling of 101891239190 in words is "one hundred one billion, eight hundred ninety-one million, two hundred thirty-nine thousand, one hundred ninety".