1101111010972 has 24 divisors (see below), whose sum is σ = 2205646975616. Its totient is φ = 471170800368.

The previous prime is 1101111010949. The next prime is 1101111010973. The reversal of 1101111010972 is 2790101111011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101111010973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30561618 + ... + 30597625.

Almost surely, 2^{1101111010972} is an apocalyptic number.

It is an amenable number.

1101111010972 is an abundant number, since it is smaller than the sum of its proper divisors (1104535964644).

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

1101111010972 is a wasteful number, since it uses less digits than its factorization.

1101111010972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61159897 (or 61159895 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 25.

Adding to 1101111010972 its reverse (2790101111011), we get a palindrome (3891212121983).

The spelling of 1101111010972 in words is "one trillion, one hundred one billion, one hundred eleven million, ten thousand, nine hundred seventy-two".