1238511911061 has 12 divisors (see below), whose sum is σ = 1706336913696. Its totient is φ = 799039940760.

The previous prime is 1238511911053. The next prime is 1238511911071. The reversal of 1238511911061 is 1601191158321.

It is not a de Polignac number, because 1238511911061 - 2³ = 1238511911053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238511911051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214792801 + ... + 214798566.

It is an arithmetic number, because the mean of its divisors is an integer number (142194742808).

Almost surely, 2^{1238511911061} is an apocalyptic number.

It is an amenable number.

1238511911061 is a deficient number, since it is larger than the sum of its proper divisors (467825002635).

1238511911061 is an equidigital number, since it uses as much as digits as its factorization.

1238511911061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429591432 (or 429591401 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 39.

The spelling of 1238511911061 in words is "one trillion, two hundred thirty-eight billion, five hundred eleven million, nine hundred eleven thousand, sixty-one".