1901010101010 has 32 divisors (see below), whose sum is σ = 4562479569600. Its totient is φ = 506929879488.

The previous prime is 1901010100993. The next prime is 1901010101041. The reversal of 1901010101010 is 101010101091.

It is a super-2 number, since 2×1901010101010² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

1901010101010 is a modest number, since divided by 10101010 gives 19010 as remainder.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2481229 + ... + 3155711.

It is an arithmetic number, because the mean of its divisors is an integer number (142577486550).

Almost surely, 2^{1901010101010} is an apocalyptic number.

1901010101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1901010101010 is an abundant number, since it is smaller than the sum of its proper divisors (2661469468590).

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

1901010101010 is a wasteful number, since it uses less digits than its factorization.

1901010101010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768442.

The product of its (nonzero) digits is 9, while the sum is 15.

The spelling of 1901010101010 in words is "one trillion, nine hundred one billion, ten million, one hundred one thousand, ten".