101920635420 has 48 divisors (see below), whose sum is σ = 285925616928. Its totient is φ = 27126661120.

The previous prime is 101920635413. The next prime is 101920635451. The reversal of 101920635420 is 24536029101.

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, 1598949 + ... + 1661468.

It is an arithmetic number, because the mean of its divisors is an integer number (5956783686).

Almost surely, 2^101920635420 is an apocalyptic number.

101920635420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101920635420 is an abundant number, since it is smaller than the sum of its proper divisors (184004981508).

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

101920635420 is a wasteful number, since it uses less digits than its factorization.

101920635420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260950 (or 3260948 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 101920635420 in words is "one hundred one billion, nine hundred twenty million, six hundred thirty-five thousand, four hundred twenty".