1201254035157 has 32 divisors (see below), whose sum is σ = 1941591980160. Its totient is φ = 727968504960.

The previous prime is 1201254035147. The next prime is 1201254035167. The reversal of 1201254035157 is 7515304521021.

1201254035157 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 254 + 0 + 351 + 57 = 666.

It is an interprime number because it is at equal distance from previous prime (1201254035147) and next prime (1201254035167).

It is not a de Polignac number, because 1201254035157 - 2¹⁰ = 1201254034133 is a prime.

It is a super-2 number, since 2×1201254035157² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201254035147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3307353 + ... + 3652545.

It is an arithmetic number, because the mean of its divisors is an integer number (60674749380).

Almost surely, 2^{1201254035157} is an apocalyptic number.

It is an amenable number.

1201254035157 is a deficient number, since it is larger than the sum of its proper divisors (740337945003).

1201254035157 is a wasteful number, since it uses less digits than its factorization.

1201254035157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356930 (or 356924 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

Adding to 1201254035157 its reverse (7515304521021), we get a palindrome (8716558556178).

The spelling of 1201254035157 in words is "one trillion, two hundred one billion, two hundred fifty-four million, thirty-five thousand, one hundred fifty-seven".