1101571998930 has 96 divisors (see below), whose sum is σ = 3159631041840. Its totient is φ = 264542607360.

The previous prime is 1101571998907. The next prime is 1101571998931. The reversal of 1101571998930 is 398991751011.

It can be written as a sum of positive squares in 8 ways, for example, as 334758287889 + 766813711041 = 578583^2 + 875679^2 .

It is a super-2 number, since 2×1101571998930² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1101571998931) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11433915 + ... + 11529854.

Almost surely, 2^{1101571998930} is an apocalyptic number.

1101571998930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1101571998930 is an abundant number, since it is smaller than the sum of its proper divisors (2058059042910).

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

1101571998930 is a wasteful number, since it uses less digits than its factorization.

1101571998930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22963836 (or 22963833 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 54.

The spelling of 1101571998930 in words is "one trillion, one hundred one billion, five hundred seventy-one million, nine hundred ninety-eight thousand, nine hundred thirty".