1312122061354 has 48 divisors (see below), whose sum is σ = 2151173697624. Its totient is φ = 599932569600.

The previous prime is 1312122061333. The next prime is 1312122061361. The reversal of 1312122061354 is 4531602212131.

It can be written as a sum of positive squares in 12 ways, for example, as 21119355625 + 1291002705729 = 145325^2 + 1136223^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87112984 + ... + 87128044.

Almost surely, 2^{1312122061354} is an apocalyptic number.

1312122061354 is a deficient number, since it is larger than the sum of its proper divisors (839051636270).

1312122061354 is a wasteful number, since it uses less digits than its factorization.

1312122061354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17483 (or 17470 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 1312122061354 its reverse (4531602212131), we get a palindrome (5843724273485).

The spelling of 1312122061354 in words is "one trillion, three hundred twelve billion, one hundred twenty-two million, sixty-one thousand, three hundred fifty-four".