1210912393540 has 48 divisors (see below), whose sum is σ = 2553117977088. Its totient is φ = 482423364864.

The previous prime is 1210912393469. The next prime is 1210912393567. The reversal of 1210912393540 is 453932190121.

It is a junction number, because it is equal to n+sod(n) for n = 1210912393493 and 1210912393502.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12079464 + ... + 12179296.

It is an arithmetic number, because the mean of its divisors is an integer number (53189957856).

Almost surely, 2^{1210912393540} is an apocalyptic number.

1210912393540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210912393540 is an abundant number, since it is smaller than the sum of its proper divisors (1342205583548).

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

1210912393540 is a wasteful number, since it uses less digits than its factorization.

1210912393540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102268 (or 102266 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 40.

The spelling of 1210912393540 in words is "one trillion, two hundred ten billion, nine hundred twelve million, three hundred ninety-three thousand, five hundred forty".