1019211230940 has 576 divisors, whose sum is σ = 3740208998400. Its totient is φ = 202477879296.

The previous prime is 1019211230927. The next prime is 1019211230977. The reversal of 1019211230940 is 490321129101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 80954166 + ... + 80966754.

It is an arithmetic number, because the mean of its divisors is an integer number (6493418400).

Almost surely, 2^{1019211230940} is an apocalyptic number.

1019211230940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1019211230940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1870104499200).

1019211230940 is an abundant number, since it is smaller than the sum of its proper divisors (2720997767460).

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

1019211230940 is a wasteful number, since it uses less digits than its factorization.

1019211230940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12694 (or 12675 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The spelling of 1019211230940 in words is "one trillion, nineteen billion, two hundred eleven million, two hundred thirty thousand, nine hundred forty".