201120100040 has 32 divisors (see below), whose sum is σ = 479139063480. Its totient is φ = 75715802112.

The previous prime is 201120100039. The next prime is 201120100121. The reversal of 201120100040 is 40001021102.

It can be written as a sum of positive squares in 4 ways, for example, as 136053273316 + 65066826724 = 368854^2 + 255082^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201120099994 and 201120100030.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147881747 + ... + 147883106.

Almost surely, 2^201120100040 is an apocalyptic number.

201120100040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201120100040 is an abundant number, since it is smaller than the sum of its proper divisors (278018963440).

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

201120100040 is a wasteful number, since it uses less digits than its factorization.

201120100040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295764881 (or 295764877 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 201120100040 its reverse (40001021102), we get a palindrome (241121121142).

The spelling of 201120100040 in words is "two hundred one billion, one hundred twenty million, one hundred thousand, forty".