20101910920102 has 32 divisors (see below), whose sum is σ = 33541245365760. Its totient is φ = 8958282273120.

The previous prime is 20101910920087. The next prime is 20101910920109. The reversal of 20101910920102 is 20102901910102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101910920109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20275678 + ... + 21243985.

It is an arithmetic number, because the mean of its divisors is an integer number (1048163917680).

Almost surely, 2^{20101910920102} is an apocalyptic number.

20101910920102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20101910920102 is a deficient number, since it is larger than the sum of its proper divisors (13439334445658).

20101910920102 is a wasteful number, since it uses less digits than its factorization.

20101910920102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41520108.

The product of its (nonzero) digits is 648, while the sum is 28.

It can be divided in two parts, 20101910 and 920102, that added together give a palindrome (21022012).

The spelling of 20101910920102 in words is "twenty trillion, one hundred one billion, nine hundred ten million, nine hundred twenty thousand, one hundred two".